The Virtual International Authority File (VIAF) is an international authority file. It is a joint project of several national libraries and operated by the

Online Computer Library Center OCLC, Inc., doing business as OCLC, See also: is an American nonprofit cooperative organization "that provides shared technology services, original research, and community programs for its membership and the library community at large". It was ...

(OCLC).

History

Discussion about having a common international authority started in the late 1990s. After a series of failed attempts to come up with a unique common authority file, the new idea was to link existing national authorities. This would present all the benefits of a common file without requiring a large investment of time and expense in the process. The VIAF concept was introduced at the 2003 World Library and Information Congress, hosted by the

International Federation of Library Associations The International Federation of Library Associations and Institutions (IFLA) is the leading international body representing the interests of people who rely on libraries and information professionals. An independent, non-governmental, not-for-pr ...

. The project was initiated by the US

Library of Congress The Library of Congress (LOC) is the research library that officially serves the United States Congress and is the ''de facto'' national library of the United States. It is the oldest federal cultural institution in the country. The librar ...

(LC), the

German National Library The German National Library (DNB; german: Deutsche Nationalbibliothek) is the central archival library and national bibliographic centre for the Federal Republic of Germany. It is one of the largest libraries in the world. Its task is to colle ...

(DNB) and the OCLC on 6 August 2003. The

Bibliothèque nationale de France The Bibliothèque nationale de France (, 'National Library of France'; BnF) is the national library of France, located in Paris on two main sites known respectively as ''Richelieu'' and ''François-Mitterrand''. It is the national reposito ...

(BnF) joined the project on 5 October 2007. The project transitioned to being a service of the OCLC on 4 April 2012. The aim is to link the national authority files (such as the German Name Authority File) to a single virtual authority file. In this file, identical records from the different data sets are linked together. A VIAF record receives a standard data number, contains the primary "see" and "see also" records from the original records, and refers to the original authority records. The data is made available online and are available for research and data exchange and sharing. Reciprocal updating uses the Open Archives Initiative Protocol for Metadata Harvesting (OAI-PMH) protocol. The file numbers are also being added to

Wikipedia Wikipedia is a multilingual free online encyclopedia written and maintained by a community of volunteers, known as Wikipedians, through open collaboration and using a wiki-based editing system. Wikipedia is the largest and most-read ref ...

biographical articles and are incorporated into

Wikidata Wikidata is a collaboratively edited multilingual knowledge graph hosted by the Wikimedia Foundation. It is a common source of open data that Wikimedia projects such as Wikipedia, and anyone else, can use under the CC0 public domain licen ...

Christine L. Borgman Christine L. Borgman is Distinguished Professor and Presidential Chair in Information Studies at UCLA. She is the author of more than 200 publications in the fields of information studies, computer science, and communication. Two of her sole-auth ...

groups VIAF with the International Standard Name Identifier and

ORCID The ORCID (; Open Researcher and Contributor ID) is a nonproprietary alphanumeric code to uniquely identify authors and contributors of scholarly communication as well as ORCID's website and services to look up authors and their bibliographic ...

systems, describing all three as "loosely coordinated efforts to standardize name forms". Borgman characterizes all three systems as attempts to solve the problem of author name disambiguation, which has grown in scale as the quantity of

data In the pursuit of knowledge, data (; ) is a collection of discrete values that convey information, describing quantity, quality, fact, statistics, other basic units of meaning, or simply sequences of symbols that may be further interpret ...

multiplies. She notes that VIAF, unlike the other two systems, is led by libraries, as opposed to individual authors or creators.

VIAF clusters

VIAF's clustering algorithm is run every month. As more data are added from participating libraries, clusters of authority records may coalesce or split, leading to some fluctuation in the VIAF identifier of certain authority records.

Participating libraries and organizations

} ,

Alexandria Alexandria ( or ; ar, ٱلْإِسْكَنْدَرِيَّةُ ; grc-gre, Αλεξάνδρεια, Alexándria) is the second largest city in Egypt, and the largest city on the Mediterranean coast. Founded in by Alexander the Great, Alexandr ...

, ,

Egypt Egypt ( ar, مصر , ), officially the Arab Republic of Egypt, is a transcontinental country spanning the northeast corner of Africa and southwest corner of Asia via a land bridge formed by the Sinai Peninsula. It is bordered by the Med ...

, - , Biblioteca Nacional de Chile , BNCHL , es, Biblioteca Nacional de Chile ,

Santiago Santiago (, ; ), also known as Santiago de Chile, is the capital and largest city of Chile as well as one of the largest cities in the Americas. It is the center of Chile's most densely populated region, the Santiago Metropolitan Region, who ...

, ,

Chile Chile, officially the Republic of Chile, is a country in the western part of South America. It is the southernmost country in the world, and the closest to Antarctica, occupying a long and narrow strip of land between the Andes to the eas ...

, - ,

Biblioteca Nacional de España The Biblioteca Nacional de España (''National Library of Spain'') is a major public library, the largest in Spain, and one of the largest in the world. It is located in Madrid, on the Paseo de Recoletos. History The library was founded b ...

, BNE , es, Biblioteca Nacional de España ,

Madrid Madrid ( , ) is the capital and most populous city of Spain. The city has almost 3.4 million inhabitants and a metropolitan area population of approximately 6.7 million. It is the second-largest city in the European Union (EU), an ...

, ,

Spain , image_flag = Bandera de España.svg , image_coat = Escudo de España (mazonado).svg , national_motto = '' Plus ultra'' ( Latin)(English: "Further Beyond") , national_anthem = (English: "Royal March") , ...

, - , Biblioteca Nacional de Portugal , PTBNP , pt, Biblioteca Nacional de Portugal , Lisbon , ,

Portugal Portugal, officially the Portuguese Republic, In recognized minority languages of Portugal: :* mwl, República Pertuesa is a country located on the Iberian Peninsula, in Southwestern Europe, and whose territory also includes the Macaronesian ...

, - ,

Bibliothèque et Archives nationales du Québec The Bibliothèque et Archives nationales du Québec ( 'National Library and Archives of Quebec') or BAnQ is a Quebec government agency which manages the province's legal deposit system, national archives, and national library. Located at the G ...

, B2Q , french: Bibliothèque et Archives nationales du Québec ,

Quebec Quebec ( ; )According to the Government of Canada, Canadian government, ''Québec'' (with the acute accent) is the official name in Canadian French and ''Quebec'' (without the accent) is the province's official name in Canadian English is ...

, ,

Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tota ...

, - ,

, BnF , french: Bibliothèque nationale de France ,

Paris Paris () is the capital and most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), making it the 30th most densely populated city in the world in 2020. ...

, ,

France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of overseas regions and territories in the Americas and the Atlantic, Pacific and Indian Oceans. Its metropolitan ar ...

, - ,

National Library of Greece The National Library of Greece ( el, Εθνική Βιβλιοθήκη της Ελλάδος, Ethnikí Vivliothíki tis Elládos) is the main public library of Greece, located in Athens. Founded by Ioannis Kapodistrias in 1832, its mission is to ...

, ΕΒΕ , el, Εθνική Βιβλιοθήκη της Ελλάδος ,

Athens Athens ( ; el, Αθήνα, Athína ; grc, Ἀθῆναι, Athênai (pl.) ) is both the capital city, capital and List of cities and towns in Greece, largest city of Greece. With a population close to four million, it is also the seventh List ...

, ,

Greece Greece,, or , romanized: ', officially the Hellenic Republic, is a country in Southeast Europe. It is situated on the southern tip of the Balkans, and is located at the crossroads of Europe, Asia, and Africa. Greece shares land borders wit ...

, - ,

Bibliothèque Nationale du Royaume du Maroc The National Library of the Kingdom of Morocco ( ar, المكتبة الوطنية للمملكة المغربية; Amazigh: ⵜⴰⵙⴷⵍⵉⵙⵜ ⵜⴰⵏⴰⵎⵓⵔⵜ ⵏ ⵜⴳⵍⴷⵉⵜ ⵜⴰⵎⵔⵔⵓⴽⵉⵜ; french: Bibliothèqu ...

(BNRM) , MRBNR , ar, المكتبة الوطنية للمملكة المغربية
french: Bibliothèque nationale du Royaume du Maroc , Rabat , ,

Morocco Morocco (),, ) officially the Kingdom of Morocco, is the westernmost country in the Maghreb region of North Africa. It overlooks the Mediterranean Sea to the north and the Atlantic Ocean to the west, and has land borders with Algeria ...

, - , Biografisch Portaal , BPN , nl, Biografisch Portaal ,

The Hague The Hague ( ; nl, Den Haag or ) is a list of cities in the Netherlands by province, city and municipalities of the Netherlands, municipality of the Netherlands, situated on the west coast facing the North Sea. The Hague is the country's ad ...

, ,

Netherlands ) , anthem = ( en, "William of Nassau") , image_map = , map_caption = , subdivision_type = Sovereign state , subdivision_name = Kingdom of the Netherlands , established_title = Before independence , established_date = Spanish Netherl ...

, - ,

British Library The British Library is the national library of the United Kingdom and is one of the largest libraries in the world. It is estimated to contain between 170 and 200 million items from many countries. As a legal deposit library, the Briti ...

, , – ,

London London is the capital and List of urban areas in the United Kingdom, largest city of England and the United Kingdom, with a population of just under 9 million. It stands on the River Thames in south-east England at the head of a estuary dow ...

, ,

England England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and the Celtic Sea to the southwest. It is separated from continental Europe ...

, - ,

Danish Agency for Culture and Palaces The Danish Agency for Culture and Palaces ( da, Slots- og Kulturstyrelsen) is an agency under the aegis of the Danish Ministry of Culture. The agency carries out the cultural policies of the Danish government within the visual and performing arts, ...

, , da, Kulturstyrelsen ,

Copenhagen Copenhagen ( or .; da, København ) is the capital and most populous city of Denmark, with a proper population of around 815.000 in the last quarter of 2022; and some 1.370,000 in the urban area; and the wider Copenhagen metropolitan ar ...

, ,

Denmark ) , song = ( en, "King Christian stood by the lofty mast") , song_type = National and royal anthem , image_map = EU-Denmark.svg , map_caption = , subdivision_type = Sovereign state , subdivision_name = Kingdom of Denmark , establishe ...

, - ,

Danish Bibliographic Centre The Danish Bibliographic Centre (DBC A/S), based in Ballerup, Denmark, produces and supplies bibliographic data and information services — for example, the Danish DK5 system (''DK5 Decimalklassedeling'') derived from the Dewey Decimal Classificat ...

, DBC , da, Dansk BiblioteksCenter , Ballerup , ,

, - ,

(DNB) , GND , german: Deutsche Nationalbibliothek ,

Frankfurt Frankfurt, officially Frankfurt am Main (; Hessian: , " Frank ford on the Main"), is the most populous city in the German state of Hesse. Its 791,000 inhabitants as of 2022 make it the fifth-most populous city in Germany. Located on its ...

, ,

Germany Germany, officially the Federal Republic of Germany (FRG),, is a country in Central Europe. It is the most populous member state of the European Union. Germany lies between the Baltic and North Sea to the north and the Alps to the sou ...

, - , International Standard Name Identifier , ISNI , – ,

, ,

United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the European mainland, continental mainland. It comprises England, Scotlan ...

, - ,

Israel Museum The Israel Museum ( he, מוזיאון ישראל, ''Muze'on Yisrael'') is an art and archaeological museum in Jerusalem. It was established in 1965 as Israel's largest and foremost cultural institution, and one of the world’s leading encyclopa ...

, , he, מוזיאון ישראל ,

Jerusalem Jerusalem (; he, יְרוּשָׁלַיִם ; ar, القُدس ) (combining the Biblical and common usage Arabic names); grc, Ἱερουσαλήμ/Ἰεροσόλυμα, Hierousalḗm/Hierosóluma; hy, Երուսաղեմ, Erusałēm. i ...

, ,

Israel Israel (; he, יִשְׂרָאֵל, ; ar, إِسْرَائِيل, ), officially the State of Israel ( he, מְדִינַת יִשְׂרָאֵל, label=none, translit=Medīnat Yīsrāʾēl; ), is a country in Western Asia. It is situated ...

, - , Istituto Centrale per il Catalogo Unico , ICCU
SBN , it, Istituto Centrale per il Catalogo Unico ,

Rome , established_title = Founded , established_date = 753 BC , founder = King Romulus ( legendary) , image_map = Map of comune of Rome (metropolitan city of Capital Rome, region Lazio, Italy).svg , map_caption ...

, ,

Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical ...

, - , Lebanese National Library , LNL , ar, المكتبة الوطنية ,

Beirut Beirut, french: Beyrouth is the capital and largest city of Lebanon. , Greater Beirut has a population of 2.5 million, which makes it the third-largest city in the Levant region. The city is situated on a peninsula at the midpoint o ...

, ,

Lebanon Lebanon ( , ar, لُبْنَان, translit=lubnān, ), officially the Republic of Lebanon () or the Lebanese Republic, is a country in Western Asia. It is located between Syria to Lebanon–Syria border, the north and east and Israel to Blue ...

, - ,

Library and Archives Canada Library and Archives Canada (LAC; french: Bibliothèque et Archives Canada) is the federal institution, tasked with acquiring, preserving, and providing accessibility to the documentary heritage of Canada. The national archive and library is t ...

, LAC , french: Bibliothèque et Archives Canada ,

Ottawa Ottawa (, ; Canadian French: ) is the capital city of Canada. It is located at the confluence of the Ottawa River and the Rideau River in the southern portion of the province of Ontario. Ottawa borders Gatineau, Quebec, and forms the core ...

Ontario Ontario ( ; ) is one of the thirteen provinces and territories of Canada.Ontario is located in the geographic eastern half of Canada, but it has historically and politically been considered to be part of Central Canada. Located in Central C ...

, ,

, - ,

NACO consortium (Name Authority Cooperative Program) , LCCN , – , Washington, D.C. , ,

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., federal district, five ma ...

, - , National and University Library in Zagreb , NSK , hr, Nacionalna i sveučilišna knjižnica u Zagrebu ,

Zagreb Zagreb ( , , , ) is the capital and largest city of Croatia. It is in the northwest of the country, along the Sava river, at the southern slopes of the Medvednica mountain. Zagreb stands near the international border between Croatia and Sl ...

, ,

Croatia , image_flag = Flag of Croatia.svg , image_coat = Coat of arms of Croatia.svg , anthem = "Lijepa naša domovino"("Our Beautiful Homeland") , image_map = , map_caption = , capit ...

, - ,

National and University Library of Slovenia The National and University Library ( sl, Narodna in univerzitetna knjižnica, ), established in 1774, is one of the most important national educational and cultural institutions of Slovenia. It is located in the centre of Ljubljana, between Aue ...

, , sl, Narodna in univerzitetna knjižnica ,

Ljubljana Ljubljana (also known by other historical names) is the capital and largest city of Slovenia. It is the country's cultural, educational, economic, political and administrative center. During antiquity, a Roman city called Emona stood in the a ...

, ,

Slovenia Slovenia ( ; sl, Slovenija ), officially the Republic of Slovenia (Slovene: , abbr.: ''RS''), is a country in Central Europe. It is bordered by Italy to the west, Austria to the north, Hungary to the northeast, Croatia to the southeast, and ...

, - , National Central Library , NCL
CYT , ,

Taipei Taipei (), officially Taipei City, is the capital and a special municipality of the Republic of China (Taiwan). Located in Northern Taiwan, Taipei City is an enclave of the municipality of New Taipei City that sits about southwest of the ...

, ,

Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the northe ...

, - ,

National Diet Library The is the national library of Japan and among the largest libraries in the world. It was established in 1948 for the purpose of assisting members of the in researching matters of public policy. The library is similar in purpose and scope t ...

, NDL , ja, 国立国会図書館 ,

Tokyo Tokyo (; ja, 東京, , ), officially the Tokyo Metropolis ( ja, 東京都, label=none, ), is the capital and List of cities in Japan, largest city of Japan. Formerly known as Edo, its metropolitan area () is the most populous in the world, ...

Kyoto Kyoto (; Japanese: , ''Kyōto'' ), officially , is the capital city of Kyoto Prefecture in Japan. Located in the Kansai region on the island of Honshu, Kyoto forms a part of the Keihanshin metropolitan area along with Osaka and Kobe. , the ...

, , Japan , - , National Institute of Informatics , NII
CiNii , ja, 国立情報学研究所 ,

, , Japan , - ,

National Library Board The National Library Board (NLB) is a statutory board under the purview of the Ministry of Communications and Information of the government of Singapore. The board manages the public libraries throughout the country. The national librarie ...

, NLB , – , – , ,

Singapore Singapore (), officially the Republic of Singapore, is a sovereign island country and city-state in maritime Southeast Asia. It lies about one degree of latitude () north of the equator, off the southern tip of the Malay Peninsula, borde ...

, - ,

National Library of Australia The National Library of Australia (NLA), formerly the Commonwealth National Library and Commonwealth Parliament Library, is the largest reference library in Australia, responsible under the terms of the ''National Library Act 1960'' for "mainta ...

, NLA , – , Canberra , , Australia , - ,

National Library of Brazil The Biblioteca Nacional do Brasil (English: ''National Library of Brazil'') is the depository of the bibliographic and documentary heritage of Brazil. It is located in Rio de Janeiro, the capital city of Brazil from 1822 to 1960, more specificall ...

, BLBNB , pt, Biblioteca Nacional do Brasil ,

Rio de Janeiro Rio de Janeiro ( , , ; literally 'River of January'), or simply Rio, is the capital of the Rio de Janeiro (state), state of the same name, Brazil's List of Brazilian states by population, third-most populous state, and the List of largest citi ...

, ,

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

, - , National Library of Catalonia , BNC , ca, Biblioteca de Catalunya ,

Barcelona Barcelona ( , , ) is a city on the coast of northeastern Spain. It is the capital and largest city of the autonomous community of Catalonia, as well as the second most populous municipality of Spain. With a population of 1.6 million within ...

, ,

, - ,

National Library of Estonia The National Library of Estonia ( et, Eesti Rahvusraamatukogu) is a national public institution in Estonia, which operates pursuant to the National Library of Estonia Act (). It was established as the parliamentary library () of Estonia on Decembe ...

, ERRR , et, Eesti Rahvusraamatukogu ,

Tallinn Tallinn () is the most populous and capital city of Estonia. Situated on a bay in north Estonia, on the shore of the Gulf of Finland of the Baltic Sea, Tallinn has a population of 437,811 (as of 2022) and administratively lies in the Harju '' ...

, ,

Estonia Estonia, formally the Republic of Estonia, is a country by the Baltic Sea in Northern Europe. It is bordered to the north by the Gulf of Finland across from Finland, to the west by the sea across from Sweden, to the south by Latvia, and t ...

, - , National and University Library of Iceland (NULI) , UIY , is, Háskólabókasafn ,

Reykjavík Reykjavík ( ; ) is the capital and largest city of Iceland. It is located in southwestern Iceland, on the southern shore of Faxaflói bay. Its latitude is 64°08' N, making it the world's northernmost capital of a sovereign state. With a pop ...

, ,

Iceland Iceland ( is, Ísland; ) is a Nordic island country in the North Atlantic Ocean and in the Arctic Ocean. Iceland is the most sparsely populated country in Europe. Iceland's capital and largest city is Reykjavík, which (along with its ...

, - ,

National Library of Ireland The National Library of Ireland (NLI; ga, Leabharlann Náisiúnta na hÉireann) is the Republic of Ireland's national library located in Dublin, in a building designed by Thomas Newenham Deane. The mission of the National Library of Ireland i ...

, N6I , ga, Leabharlann Náisiúnta na hÉireann ,

Dublin Dublin (; , or ) is the capital and largest city of Ireland. On a bay at the mouth of the River Liffey, it is in the province of Leinster, bordered on the south by the Dublin Mountains, a part of the Wicklow Mountains range. At the 2016 ...

, ,

Ireland Ireland ( ; ga, Éire ; Ulster Scots dialect, Ulster-Scots: ) is an island in the Atlantic Ocean, North Atlantic Ocean, in Northwestern Europe, north-western Europe. It is separated from Great Britain to its east by the North Channel (Grea ...

, - ,

National Library of Israel The National Library of Israel (NLI; he, הספרייה הלאומית, translit=HaSifria HaLeumit; ar, المكتبة الوطنية في إسرائيل), formerly Jewish National and University Library (JNUL; he, בית הספרים הלא� ...

, NLI , he, הספרייה הלאומית ,

, ,

, - , National Library of Korea , KRNLK , ko, 국립중앙도서관 ,

Seoul Seoul (; ; ), officially known as the Seoul Special City, is the Capital city, capital and largest metropolis of South Korea.Before 1972, Seoul was the ''de jure'' capital of the North Korea, Democratic People's Republic of Korea (North Korea ...

, ,

Korea Korea ( ko, 한국, or , ) is a peninsular region in East Asia. Since 1945, it has been divided at or near the 38th parallel, with North Korea (Democratic People's Republic of Korea) comprising its northern half and South Korea (Republi ...

, - , National Library of Latvia , LNB , lv, Latvijas Nacionālā bibliotēka ,

Riga Riga (; lv, Rīga , liv, Rīgõ) is the capital and largest city of Latvia and is home to 605,802 inhabitants which is a third of Latvia's population. The city lies on the Gulf of Riga at the mouth of the Daugava river where it meets the B ...

, ,

Latvia Latvia ( or ; lv, Latvija ; ltg, Latveja; liv, Leţmō), officially the Republic of Latvia ( lv, Latvijas Republika, links=no, ltg, Latvejas Republika, links=no, liv, Leţmō Vabāmō, links=no), is a country in the Baltic region of ...

, - , National Library of Luxembourg , BNL , lb, Nationalbibliothéik Lëtzebuerg
french: Bibliothèque nationale de Luxembourg ,

Luxembourg City Luxembourg ( lb, Lëtzebuerg; french: Luxembourg; german: Luxemburg), also known as Luxembourg City ( lb, Stad Lëtzebuerg, link=no or ; french: Ville de Luxembourg, link=no; german: Stadt Luxemburg, link=no or ), is the capital city of the G ...

, ,

Luxembourg Luxembourg ( ; lb, Lëtzebuerg ; french: link=no, Luxembourg; german: link=no, Luxemburg), officially the Grand Duchy of Luxembourg, ; french: link=no, Grand-Duché de Luxembourg ; german: link=no, Großherzogtum Luxemburg is a small land ...

, - , National Library of Mexico , BNM , es, Biblioteca Nacional de México ,

Mexico City Mexico City ( es, link=no, Ciudad de México, ; abbr.: CDMX; Nahuatl: ''Altepetl Mexico'') is the capital and largest city of Mexico, and the most populous city in North America. One of the world's alpha cities, it is located in the Valley of ...

, ,

Mexico Mexico ( Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guate ...

, - ,

National Library of the Netherlands The Royal Library of the Netherlands ( Dutch: Koninklijke Bibliotheek or KB; ''Royal Library'') is the national library of the Netherlands, based in The Hague, founded in 1798. The KB collects everything that is published in and concerning the N ...

, NTA , nl, Koninklijke Bibliotheek ,

, ,

, - , National Library of New Zealand , , – ,

Wellington Wellington ( mi, Te Whanganui-a-Tara or ) is the capital city of New Zealand. It is located at the south-western tip of the North Island, between Cook Strait and the Remutaka Range. Wellington is the second-largest city in New Zealand by m ...

, ,

New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 List of islands of New Zealand, smaller islands. It is the ...

, - ,

National Library of Norway The National Library of Norway ( no, Nasjonalbiblioteket) was established in 1989. Its principal task is "to preserve the past for the future". The library is located both in Oslo and in Mo i Rana. The building in Oslo was restored and reopened i ...

, BIBSYS
W2Z , no, Nasjonalbiblioteket ,

Trondheim Trondheim ( , , ; sma, Tråante), historically Kaupangen, Nidaros and Trondhjem (), is a city and municipality in Trøndelag county, Norway. As of 2020, it had a population of 205,332, was the third most populous municipality in Norway, an ...

, ,

Norway Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavian Peninsula. The remote Arctic island of Jan Mayen and t ...

, - ,

National Library of Poland The National Library ( pl, Biblioteka Narodowa) is the central Polish library, subject directly to the Ministry of Culture and National Heritage of the Republic of Poland. The library collects books, journals, electronic and audiovisual publica ...

, NLP , pl, Biblioteka Narodowa ,

Warsaw Warsaw ( pl, Warszawa, ), officially the Capital City of Warsaw,, abbreviation: ''m.st. Warszawa'' is the capital and largest city of Poland. The metropolis stands on the River Vistula in east-central Poland, and its population is official ...

, ,

Poland Poland, officially the Republic of Poland, , is a country in Central Europe. Poland is divided into Voivodeships of Poland, sixteen voivodeships and is the fifth most populous member state of the European Union (EU), with over 38 mill ...

, - ,

National Library of Russia The National Library of Russia (NLR, russian: Российская национальная библиотека}), located in Saint Petersburg, is the first, and one of three national public libraries in Russia. The NLR is currently ranked amo ...

, NLR , russian: Российская национальная библиотека ,

Saint Petersburg Saint Petersburg ( rus, links=no, Санкт-Петербург, a=Ru-Sankt Peterburg Leningrad Petrograd Piter.ogg, r=Sankt-Peterburg, p=ˈsankt pʲɪtʲɪrˈburk), formerly known as Petrograd (1914–1924) and later Leningrad (1924–1991), i ...

, ,

Russia Russia (, , ), or the Russian Federation, is a transcontinental country spanning Eastern Europe and Northern Asia. It is the largest country in the world, with its internationally recognised territory covering , and encompassing one-eigh ...

, - ,

National Library of Scotland The National Library of Scotland (NLS) ( gd, Leabharlann Nàiseanta na h-Alba, sco, Naitional Leebrar o Scotland) is the legal deposit library of Scotland and is one of the country's National Collections. As one of the largest libraries in th ...

, , gd, Leabharlann Nàiseanta na h-Alba
sco, Naitional Leebrar o Scotland ,

Edinburgh Edinburgh ( ; gd, Dùn Èideann ) is the capital city of Scotland and one of its 32 Council areas of Scotland, council areas. Historically part of the county of Midlothian (interchangeably Edinburghshire before 1921), it is located in Lothian ...

, ,

Scotland Scotland (, ) is a country that is part of the United Kingdom. Covering the northern third of the island of Great Britain, mainland Scotland has a border with England to the southeast and is otherwise surrounded by the Atlantic Ocean to th ...

, - , National Library of South Africa , , af, Staats-Bibliotheek der Zuid-Afrikaansche Republiek ,

Cape Town Cape Town ( af, Kaapstad; , xh, iKapa) is one of South Africa's three capital cities, serving as the seat of the Parliament of South Africa. It is the legislative capital of the country, the oldest city in the country, and the second larges ...

Pretoria Pretoria () is South Africa's administrative capital, serving as the seat of the executive branch of government, and as the host to all foreign embassies to South Africa. Pretoria straddles the Apies River and extends eastward into the foot ...

, ,

South Africa South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring count ...

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National Library of Sweden The National Library of Sweden ( sv, Kungliga biblioteket, ''KB'', meaning "the Royal Library") is Sweden's national library. It collects and preserves all domestic printed and audio-visual materials in Swedish, as well as content with Swedish ...

, SELIBR , sv, Kungliga biblioteket - Sveriges nationalbibliotek , Stockholm , , Sweden , - ,

National Library of Wales The National Library of Wales ( cy, Llyfrgell Genedlaethol Cymru), Aberystwyth, is the national legal deposit library of Wales and is one of the Welsh Government sponsored bodies. It is the biggest library in Wales, holding over 6.5 million ...

, , cy, Llyfrgell Genedlaethol Cymru , Aberystwyth , ,

Wales Wales ( cy, Cymru ) is a Countries of the United Kingdom, country that is part of the United Kingdom. It is bordered by England to the Wales–England border, east, the Irish Sea to the north and west, the Celtic Sea to the south west and the ...

, - , National Library of the Czech Republic , NKC , cs, Národní knihovna České republiky ,

Prague Prague ( ; cs, Praha ; german: Prag, ; la, Praga) is the capital and largest city in the Czech Republic, and the historical capital of Bohemia. On the Vltava river, Prague is home to about 1.3 million people. The city has a temperate ...

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Czech Republic The Czech Republic, or simply Czechia, is a landlocked country in Central Europe. Historically known as Bohemia, it is bordered by Austria to the south, Germany to the west, Poland to the northeast, and Slovakia to the southeast. Th ...

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National Széchényi Library The National Széchényi Library ( hu, Országos Széchényi Könyvtár) (OSZK) is a library in Budapest, Hungary, located in Buda Castle. It is one of two Hungarian national libraries, the other being University of Debrecen Library. History The ...

, NSZL , hu, Országos Széchényi Könyvtár ,

Budapest Budapest (, ; ) is the capital and most populous city of Hungary. It is the ninth-largest city in the European Union by population within city limits and the second-largest city on the Danube river; the city has an estimated population ...

, ,

Hungary Hungary ( hu, Magyarország ) is a landlocked country in Central Europe. Spanning of the Carpathian Basin, it is bordered by Slovakia to the north, Ukraine to the northeast, Romania to the east and southeast, Serbia to the south, Croa ...

, - ,

Perseus Project The Perseus Project is a digital library project of Tufts University, which assembles digital collections of humanities resources. Version 4.0 is also known as the "Perseus Hopper", and it is hosted by the Department of Classical Studies. The proj ...

, PERSEUS , – ,

Medford, Massachusetts Medford is a city northwest of downtown Boston on the Mystic River in Middlesex County, Massachusetts, United States. At the time of the 2020 U.S. Census, Medford's population was 59,659. It is home to Tufts University, which has its campus al ...

, ,

, - , RERO (Library Network of Western Switzerland) , RERO , german: Westschweizer Bibliothekverbund
french: Réseau des bibliothèques de Suisse occidentale
it, Rete delle bibliotheche della Svizzera occidentale ,

Martigny Martigny (; german: Martinach, ; la, Octodurum) is the capital city of the district of Martigny, canton of Valais, Switzerland. It lies at an elevation of , and its population is approximately 15000 inhabitants (''Martignerains'' or "Octodurie ...

, , Switzerland , - ,

Répertoire International des Sources Musicales A repertoire () is a list or set of dramas, operas, musical compositions or roles which a company or person is prepared to perform. Musicians often have a musical repertoire. The first known use of the word ''repertoire'' was in 1847. It is a ...

, RISM , – ,

, ,

, - , Système universitaire de documentation , SUDOC , french: Système universitaire de documentation , – , ,

, - ,

Syriac Reference Portal Syriac may refer to: *Syriac language, an ancient dialect of Middle Aramaic *Sureth, one of the modern dialects of Syriac spoken in the Nineveh Plains region * Syriac alphabet ** Syriac (Unicode block) ** Syriac Supplement * Neo-Aramaic languages a ...

, SRP , – ,

Nashville, Tennessee Nashville is the capital city of the U.S. state of Tennessee and the seat of Davidson County. With a population of 689,447 at the 2020 U.S. census, Nashville is the most populous city in the state, 21st most-populous city in the U.S., and t ...

, ,

, - , Swiss National Library , SWNL , german: Schweizerische Nationalbibliothek
french: Bibliothèque nationale suisse
it, Biblioteca nazionale svizzera
rm, Biblioteca naziunala svizra , Bern , , Switzerland , - , , NUKAT , pl, Narodowy Uniwersalny Katalog Centralny , – , ,

, - , Union List of Artist Names –

Getty Research Institute The Getty Research Institute (GRI), located at the Getty Center in Los Angeles, California, is "dedicated to furthering knowledge and advancing understanding of the visual arts".

, ULAN
JPG , – ,

Los Angeles Los Angeles ( ; es, Los Ángeles, link=no , ), often referred to by its initials L.A., is the largest city in the state of California and the second most populous city in the United States after New York City, as well as one of the wor ...

California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the ...

, ,

, - ,

United States National Agricultural Library The United States National Agricultural Library (NAL) is one of the world's largest agricultural research libraries, and serves as a national library of the United States and as the library of the United States Department of Agriculture. Located ...

, NALT , – ,

Beltsville, Maryland Beltsville is a census-designated place (CDP) in northern Prince George's County, Maryland, Prince George's County, Maryland, United States. The community was named for Truman Belt, a local landowner. The 2020 census counted 20,133 residents. Belts ...

, - ,

United States National Library of Medicine The United States National Library of Medicine (NLM), operated by the United States federal government, is the world's largest medical library. Located in Bethesda, Maryland, the NLM is an institute within the National Institutes of Health. Its ...

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Bethesda, Maryland Bethesda () is an unincorporated, census-designated place in southern Montgomery County, Maryland. It is located just northwest of Washington, D.C. It takes its name from a local church, the Bethesda Meeting House (1820, rebuilt 1849), which ...

, ,

, - ,

Vatican Library The Vatican Apostolic Library ( la, Bibliotheca Apostolica Vaticana, it, Biblioteca Apostolica Vaticana), more commonly known as the Vatican Library or informally as the Vat, is the library of the Holy See, located in Vatican City. Formally es ...

, BAV , la, Bibliotheca Apostolica Vaticana , – , ,

Vatican City Vatican City (), officially the Vatican City State ( it, Stato della Città del Vaticano; la, Status Civitatis Vaticanae),—' * german: Vatikanstadt, cf. '—' (in Austria: ') * pl, Miasto Watykańskie, cf. '—' * pt, Cidade do Vati ...

, - , Cultuurconnect ( and LOCUS) , , nl, Vlaamse Centrale Catalogus ,

Brussels Brussels (french: Bruxelles or ; nl, Brussel ), officially the Brussels-Capital Region (All text and all but one graphic show the English name as Brussels-Capital Region.) (french: link=no, Région de Bruxelles-Capitale; nl, link=no, Bruss ...

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Belgium Belgium, ; french: Belgique ; german: Belgien officially the Kingdom of Belgium, is a country in Northwestern Europe. The country is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeast, France to ...

, - ,

, WKP , – ,

Berlin Berlin is Capital of Germany, the capital and largest city of Germany, both by area and List of cities in Germany by population, by population. Its more than 3.85 million inhabitants make it the European Union's List of cities in the European U ...

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Libraries added for testing purposes

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Vilnius Vilnius ( , ; see also other names) is the capital and largest city of Lithuania, with a population of 592,389 (according to the state register) or 625,107 (according to the municipality of Vilnius). The population of Vilnius's functional u ...

, , Lithuania , - ,

/ COBISS , SIMACOB , sl, Narodna in univerzitetna knjižnica, NUK ,

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References

Sources

External links

*
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OCLC OCLC, Inc., doing business as OCLC, See also: is an American nonprofit cooperative organization "that provides shared technology services, original research, and community programs for its membership and the library community at large". It wa ...

{{Authority control Identifiers Library cataloging and classification Library of Congress OCLC