Igor A. Zotikov
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Igor Alekseevich Zotikov () (March 7, 1926 – August 23, 2010) was a Russian
glaciologist Glaciology (; ) is the scientific study of glaciers, or, more generally, ice and natural phenomena that involve ice. Glaciology is an interdisciplinary Earth science that integrates geophysics, geology, physical geography, geomorphology, clim ...
,
polar explorer This list is for recognised pioneering explorers of the polar regions. It does not include subsequent travelers and expeditions. Polar explorers * Jameson Adams * Mark Agnew * Stian Aker * Valerian Albanov * Roald Amundsen * Salomon August ...
and
academic An academy (Attic Greek: Ἀκαδήμεια; Koine Greek Ἀκαδημία) is an institution of tertiary education. The name traces back to Plato's school of philosophy, founded approximately 386 BC at Akademia, a sanctuary of Athena, the go ...
. Zotikov was best known for predicting the existence of fresh water
lakes A lake is often a naturally occurring, relatively large and fixed body of water on or near the Earth's surface. It is localized in a basin or interconnected basins surrounded by dry land. Lakes lie completely on land and are separate from t ...
under the
Antarctic ice sheet The Antarctic ice sheet is a continental glacier covering 98% of the Antarctic continent, with an area of and an average thickness of over . It is the largest of Earth's two current ice sheets, containing of ice, which is equivalent to 61% of ...
, later to be discovered as
Lake Vostok Lake Vostok () is the largest of Antarctica's 675 known subglacial lakes. Lake Vostok is located at the southern Pole of Cold, beneath Russia's Vostok Station under the surface of the central East Antarctic Ice Sheet, which is at above mean se ...
. For his efforts a glacier was named after him,
Zotikov Glacier Liv Glacier () is a steep valley glacier, long, emerging from the Antarctic Plateau just southeast of Barnum Peak and draining north through the Queen Maud Mountains to enter Ross Ice Shelf between Mayer Crags and Duncan Mountains. It was disc ...
.


Early life and education

Zotikov was born on March 7, 1926, in
Moscow, Russia Moscow is the Capital city, capital and List of cities and towns in Russia by population, largest city of Russia, standing on the Moskva (river), Moskva River in Central Russia. It has a population estimated at over 13 million residents with ...
. In 1949 Zotikov graduated from the
Moscow Aviation Institute Moscow Aviation Institute () is an engineering research university in Moscow, Russia. It is designated a National Research University. Since its inception the institute has been spearheading advances in aerospace technology both within Russia a ...
as an engineer. Although he wanted to be a
test pilot A test pilot is an aircraft pilot with additional training to fly and evaluate experimental, newly produced and modified aircraft with specific maneuvers, known as flight test techniques.Stinton, Darrol. ''Flying Qualities and Flight Testin ...
, he did not fly due to
near-sightedness Myopia, also known as near-sightedness and short-sightedness, is an eye condition where light from distant objects focuses in front of, instead of on, the retina. As a result, distant objects appear blurred vision, blurry, while close objects ...
. He received his
Doctor of Sciences A Doctor of Sciences, abbreviated д-р наук or д. н.; ; ; ; is a higher doctoral degree in the Russian Empire, Soviet Union and many Commonwealth of Independent States countries. One of the prerequisites of receiving a Doctor of Sciences ...
in
geology Geology (). is a branch of natural science concerned with the Earth and other astronomical objects, the rocks of which they are composed, and the processes by which they change over time. Modern geology significantly overlaps all other Earth ...
from the Energy Institute Krzhizhanovsky under the
Academy of Sciences of the Soviet Union The Academy of Sciences of the Soviet Union was the highest scientific institution of the Soviet Union from 1925 to 1991. It united the country's leading scientists and was subordinated directly to the Council of Ministers of the Soviet Union (un ...
(Russian Academy of Sciences). Interested in
glaciology Glaciology (; ) is the scientific study of glaciers, or, more generally, ice and natural phenomena that involve ice. Glaciology is an interdisciplinary Earth science that integrates geophysics, geology, physical geography, geomorphology, clim ...
, he joined the expedition to
Antarctica Antarctica () is Earth's southernmost and least-populated continent. Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean (also known as the Antarctic Ocean), it contains the geographic South Pole. ...
during the
International Geophysical Year The International Geophysical Year (IGY; ), also referred to as the third International Polar Year, was an international scientific project that lasted from 1 July 1957 to 31 December 1958. It marked the end of a long period during the Cold War w ...
(IGY) of 1957–1958. Zotikov wrote his thesis based on the findings from the expedition. The thesis was published in 1963 by the
International Association of Hydrological Sciences The International Association of Hydrological Sciences (IAHS) is a non-profit, non-governmental scientific organization committed to serving the science of hydrology and the worldwide community of hydrologists. The IAHS was established in 1922, ...
. Zotikov's thesis discussed the interaction between the ocean and glaciation. Obtaining results from the IGY, regarding
thermal physics Thermal physics is the combined study of thermodynamics, statistical mechanics, and kinetic theory of gases. This umbrella-subject is typically designed for physics students and functions to provide a general introduction to each of three core he ...
of large
ice sheets In glaciology, an ice sheet, also known as a continental glacier, is a mass of glacial ice that covers surrounding terrain and is greater than . The only current ice sheets are the Antarctic ice sheet and the Greenland ice sheet. Ice sheets ...
, it theoretically showed that in the central part of the ice sheet, there could be continuous
melting Melting, or fusion, is a physical process that results in the phase transition of a substance from a solid to a liquid. This occurs when the internal energy of the solid increases, typically by the application of heat or pressure, which inc ...
and freshwater
subglacial lakes A subglacial lake is a lake that is found under a glacier, typically beneath an ice cap or ice sheet. Subglacial lakes form at the boundary between ice and the underlying bedrock, where liquid water can exist above the lower melting point of ice ...
underneath the Antarctic ice. Zotikov was not the first scientist to propose the idea of fresh water under the Antarctica's ice sheets. At the end of the 19th century,
Peter Kropotkin Pyotr Alexeyevich Kropotkin (9 December 1842 – 8 February 1921) was a Russian anarchist and geographer known as a proponent of anarchist communism. Born into an aristocratic land-owning family, Kropotkin attended the Page Corps and later s ...
theorized that the immense weight of ice can cause a significant amount of pressure, which can lower the
pressure melting point The pressure melting point of ice is the temperature at which ice melts at a given pressure. The pressure melting point is nearly a constant 0  °C at pressures above the triple point at 611.7  Pa—where ice, water, and water vapour coe ...
of the ice sheet's lower parts. As a result, the ice may turn into liquid water.. In 1963 Zotikov wrote his dissertation furthering Kropotkin's theory. His DSc thesis observed that the temperature at the bottom of the ice sheet below
Vostok Station Vostok Station (, , ) is a Russian research station in inland Princess Elizabeth Land, Antarctica. Founded by the Soviet Union in 1957, the station lies at the southern Pole of Cold, with the lowest reliably measured natural temperature on ...
is at the
melting point The melting point (or, rarely, liquefaction point) of a substance is the temperature at which it changes state of matter, state from solid to liquid. At the melting point the solid and liquid phase (matter), phase exist in Thermodynamic equilib ...
of ice and it is located beneath the thickest part of the ice sheet. Zotikov observed that
lakes A lake is often a naturally occurring, relatively large and fixed body of water on or near the Earth's surface. It is localized in a basin or interconnected basins surrounded by dry land. Lakes lie completely on land and are separate from t ...
might exist at the ice/rock barrier, and that
microorganism A microorganism, or microbe, is an organism of microscopic scale, microscopic size, which may exist in its unicellular organism, single-celled form or as a Colony (biology)#Microbial colonies, colony of cells. The possible existence of unseen ...
s could exist there.


Career

Before Zotikov became a glaciologist, in between college and his
postgraduate education Postgraduate education, graduate education, or graduate school consists of Academic degree, academic or professional degrees, certificates, diplomas, or other qualifications usually pursued by higher education, post-secondary students who have ...
, he worked for three years on the
heat transfer Heat transfer is a discipline of thermal engineering that concerns the generation, use, conversion, and exchange of thermal energy (heat) between physical systems. Heat transfer is classified into various mechanisms, such as thermal conduction, ...
and
thermodynamic Thermodynamics is a branch of physics that deals with heat, work, and temperature, and their relation to energy, entropy, and the physical properties of matter and radiation. The behavior of these quantities is governed by the four laws of th ...
problems of designing
jet engines A jet engine is a type of reaction engine, discharging a fast-moving jet (fluid), jet of heated gas (usually air) that generates thrust by jet propulsion. While this broad definition may include Rocket engine, rocket, Pump-jet, water jet, and ...
. Following that he worked from 1952 until 1958 on the
atmospheric entry Atmospheric entry (sometimes listed as Vimpact or Ventry) is the movement of an object from outer space into and through the gases of an atmosphere of a planet, dwarf planet, or natural satellite. Atmospheric entry may be ''uncontrolled entr ...
problems of the first Soviet
ballistic missile A ballistic missile is a type of missile that uses projectile motion to deliver warheads on a target. These weapons are powered only during relatively brief periods—most of the flight is unpowered. Short-range ballistic missiles (SRBM) typic ...
, the
R-7 Semyorka The R-7 Semyorka (, GRAU index: 8K71) was a Soviet Union, Soviet missile developed during the Cold War, and the world's first intercontinental ballistic missile. The R-7 made 28 launches between 1957 and 1961. A derivative, the R-7A Semyorka, R ...
. His work was related to the
melting Melting, or fusion, is a physical process that results in the phase transition of a substance from a solid to a liquid. This occurs when the internal energy of the solid increases, typically by the application of heat or pressure, which inc ...
and
evaporation Evaporation is a type of vaporization that occurs on the Interface (chemistry), surface of a liquid as it changes into the gas phase. A high concentration of the evaporating substance in the surrounding gas significantly slows down evapora ...
of the missile's nose by the heat that was generated re-entering Earth's atmosphere. After receiving his Doctor of Sciences, Zotikov worked for the
Russian Academy of Sciences The Russian Academy of Sciences (RAS; ''Rossíyskaya akadémiya naúk'') consists of the national academy of Russia; a network of scientific research institutes from across the Russian Federation; and additional scientific and social units such ...
. During his forty-year career with the academy he spent several years
overwintering Overwintering is the process by which some organisms pass through or wait out the winter season, or pass through that period of the year when "winter" conditions (cold or sub-zero temperatures, ice, snow, limited food supplies) make normal activ ...
both at the Russian
Vostok Station Vostok Station (, , ) is a Russian research station in inland Princess Elizabeth Land, Antarctica. Founded by the Soviet Union in 1957, the station lies at the southern Pole of Cold, with the lowest reliably measured natural temperature on ...
and United States'
McMurdo Station McMurdo Station is an American Antarctic research station on the southern tip of Ross Island. It is operated by the United States through the United States Antarctic Program (USAP), a branch of the National Science Foundation. The station is ...
. In 1965, as a Soviet exchange scientist and member of
Operation Deep Freeze Operation Deep Freeze is the code name for a series of United States missions to Antarctica, beginning with "Operation Deep Freeze I" in 1955–56, followed by "Operation Deep Freeze II", "Operation Deep Freeze III", and so on. (There was an init ...
'65, Zotikov studied the process of freezing and melting at the bottom of the
Ross Ice Shelf The Ross Ice Shelf is the largest ice shelf of Antarctica (, an area of roughly and about across: about the size of France). It is several hundred metres thick. The nearly vertical ice front to the open sea is more than long, and between high ...
and collaborated with leading American specialists on deep drilling. The
National Science Foundation The U.S. National Science Foundation (NSF) is an Independent agencies of the United States government#Examples of independent agencies, independent agency of the Federal government of the United States, United States federal government that su ...
invited Zotikov to join the Ross Ice Shelf Project investigating whether freezing or melting occurs at the bottom of the Ross Ice Shelf. He worked on this project from 1972 to 1978 and wrote two papers based on his findings, ''Thermal Drilling of the Glacier'' and ''Antifreeze-thermodrilling for Core Through the Central Part of the Ross Ice Shelf (J-9 Camp), Antarctica''. Both papers were published by the
Cold Regions Research and Engineering Laboratory The Cold Regions Research and Engineering Laboratory (CRREL) is a United States Army Corps of Engineers, Engineer Research and Development Center research facility headquartered in Hanover, New Hampshire, that provides scientific and engineering ...
. Confirmation of the existence of Lake Vostok occurred in 1993 by G.P. Ridley (UK) using the
European Remote-Sensing Satellite European Remote Sensing satellite (ERS) was the European Space Agency's first Earth-observing satellite programme using a polar orbit. It consisted of two satellites, ERS-1 and ERS-2, with ERS-1 being launched in 1991. ERS-1 ERS-1 launched ...
's laser altimetry. A subsequent paper was published in the journal
Nature Nature is an inherent character or constitution, particularly of the Ecosphere (planetary), ecosphere or the universe as a whole. In this general sense nature refers to the Scientific law, laws, elements and phenomenon, phenomena of the physic ...
in 1996 co-authored by Zotikov. In 2003 and 2004 Zotikov received a grant from the
Fulbright Foundation The Fulbright Program, including the Fulbright–Hays Program, is one of several United States cultural exchange programs with the goal of improving intercultural relations, cultural diplomacy, and intercultural competence between the people o ...
for eight months on the project Geographical Study of Lake Vostok in Antarctica. The project was conducted under the direction of Roger Barry who was a director at the
National Snow and Ice Data Center The National Snow and Ice Data Center (NSIDC) is a United States information and referral center in support of polar and cryospheric research. NSIDC archives and distributes digital and analog snow and ice data and also maintains information ab ...
of the
Cooperative Institute for Research in Environmental Sciences The Cooperative Institute for Research in Environmental Sciences (CIRES) is a research institute that is sponsored jointly by the National Oceanic and Atmospheric Administration (NOAA) Office of Oceanic and Atmospheric Research (OAR) and the Uni ...
of the
University of Colorado Boulder The University of Colorado Boulder (CU Boulder, CU, or Colorado) is a public research university in Boulder, Colorado, United States. Founded in 1876, five months before Colorado became a state, it is the flagship university of the University o ...
. Zotikov co-authored a paper published in the
Journal of Glaciology A journal, from the Old French ''journal'' (meaning "daily"), may refer to: *Bullet journal, a method of personal organization *Diary, a record of personal secretive thoughts and as open book to personal therapy or used to feel connected to onesel ...
in 2004 about his findings, ''The Kolka-Karmadon rock/ice slide of 20 September 2002: An extraordinary event of historical dimensions in North Ossetia, Russian Caucasus''.


Books

Zotikov is the author of two scientific books about his findings in Antarctica. ''The Thermophysics of Glaciers'' and ''The Antarctic Subglacial Lake Vostok: Glaciology, Biology and Planetology'', the later summing up his lifetime of scientific papers on the subject. Zotikov was the first to translate the book ''The Prophet'' by
Kahlil Gibran Gibran Khalil Gibran (January 6, 1883 – April 10, 1931), usually referred to in English as Kahlil Gibran, was a Lebanese-American writer, poet and Visual arts, visual artist; he was also considered a philosopher, although he himself reject ...
into Russian, published by
Raduga Raduga () can refer to : * MKB Raduga, a Russian maker of missile systems formerly known as OKB Raduga * VBK-Raduga, an uncrewed reentry capsule used to return material from the Russian Mir space station * Raduga (satellite), a series of Russian co ...
in 1989. The original publication was in 1923 by
Alfred A. Knopf Alfred A. Knopf, Inc. () is an American publishing house that was founded by Blanche Knopf and Alfred A. Knopf Sr. in 1915. Blanche and Alfred traveled abroad regularly and were known for publishing European, Asian, and Latin American writers ...
. In his later years Zotikov wrote several non-fiction books that were
self-published Self-publishing is an author-driven publication of any media without the involvement of a third-party publisher. Since the advent of the internet, self-published usually depends upon digital platforms and print-on-demand technology, ranging fr ...
in Russia such as ''I was not looking for a kiwi bird'' and ''Picnic on the Appalachian Trail''.


legacy and death

Zotikov was not the first scientist to propose the idea of fresh water under the Antarctica's ice sheets. At the end of the 19th century,
Peter Kropotkin Pyotr Alexeyevich Kropotkin (9 December 1842 – 8 February 1921) was a Russian anarchist and geographer known as a proponent of anarchist communism. Born into an aristocratic land-owning family, Kropotkin attended the Page Corps and later s ...
theorized that "the tremendous pressure exerted by the cumulative mass of thousands of vertical meters of ice could decrease the melting point at the lowest portions of the ice sheet to the point where the ice would become liquid water". In 1963 Zotikov wrote his dissertation furthering Kropotkin's theory. His
DSc DSC or Dsc may refer to: Education * Doctor of Science (D.Sc.) * District Selection Committee, an entrance exam in India * Doctor of Surgical Chiropody, superseded in the 1960s by Doctor of Podiatric Medicine Educational institutions * Dyal Sin ...
thesis indicated "the temperature at the bottom of the ice sheet below
Vostok Station Vostok Station (, , ) is a Russian research station in inland Princess Elizabeth Land, Antarctica. Founded by the Soviet Union in 1957, the station lies at the southern Pole of Cold, with the lowest reliably measured natural temperature on ...
to be at the ice
melting point The melting point (or, rarely, liquefaction point) of a substance is the temperature at which it changes state of matter, state from solid to liquid. At the melting point the solid and liquid phase (matter), phase exist in Thermodynamic equilib ...
as well as being beneath the thickest part of the ice sheet". It occurred to him that
lakes A lake is often a naturally occurring, relatively large and fixed body of water on or near the Earth's surface. It is localized in a basin or interconnected basins surrounded by dry land. Lakes lie completely on land and are separate from t ...
might exist at the ice/rock barrier, and that
microorganism A microorganism, or microbe, is an organism of microscopic scale, microscopic size, which may exist in its unicellular organism, single-celled form or as a Colony (biology)#Microbial colonies, colony of cells. The possible existence of unseen ...
s could exist there. Confirmation of the existence of Lake Vostok occurred in 1993 by G.P. Ridley (UK) using the
European Remote-Sensing Satellite European Remote Sensing satellite (ERS) was the European Space Agency's first Earth-observing satellite programme using a polar orbit. It consisted of two satellites, ERS-1 and ERS-2, with ERS-1 being launched in 1991. ERS-1 ERS-1 launched ...
's laser altimetry. A subsequent paper was published in the journal
Nature Nature is an inherent character or constitution, particularly of the Ecosphere (planetary), ecosphere or the universe as a whole. In this general sense nature refers to the Scientific law, laws, elements and phenomenon, phenomena of the physic ...
in 1996 co-authored by Zotikov. Zotikov died on August 23, 2010, from
Prostate cancer Prostate cancer is the neoplasm, uncontrolled growth of cells in the prostate, a gland in the male reproductive system below the bladder. Abnormal growth of the prostate tissue is usually detected through Screening (medicine), screening tests, ...
and is buried at the Vostryakovskoe cemetery in Moscow, Russia. Three years after Zotikov's death, On July 3, 2013, a paper was published titled ''Subglacial Lake Vostok (Antarctica) Accretion Ice Contains a Diverse Set of Sequences from Aquatic, Marine and Sediment-Inhabiting Bacteria and Eukarya'' in the PLOS One journal by the
Public Library of Science PLOS (for Public Library of Science; PLoS until 2012) is a nonprofit publisher of open-access journals in science, technology, and medicine and other scientific literature, under an open-content license. It was founded in 2000 and launched its ...
, confirming there is life in Lake Vostok.


Recognition and awards

* Two
Order of the Badge of Honour The Order of the Badge of Honour () was a civilian award of the Soviet Union. It was established on 25 November 1935, and was conferred on citizens of the USSR for outstanding achievements in sports, production, scientific research and socia ...
*
Antarctic Service Medal The Antarctica Service Medal (ASM) was established by the United States Congress on July 7, 1960, under s:Public Law 86-600, Public Law 600 of the 86th United States Congress, 86th Congress. The medal was intended as a awards and decorations of ...
*
Zotikov Glacier Liv Glacier () is a steep valley glacier, long, emerging from the Antarctic Plateau just southeast of Barnum Peak and draining north through the Queen Maud Mountains to enter Ross Ice Shelf between Mayer Crags and Duncan Mountains. It was disc ...
namesake * Gratitude of the
President of the Russian Federation The president of Russia, officially the president of the Russian Federation (), is the executive head of state of Russia. The president is the chair of the Federal State Council and the supreme commander-in-chief of the Russian Armed Forces. I ...


Publications


Books

* ''The Thermophysics of Glaciers'' (1986) * '' The Prophet'' (Russian translation) (1989) * ''The Antarctic Subglacial Lake Vostok: Glaciology, Biology and Planetology'' (2006)


Self published books

Self-published Self-publishing is an author-driven publication of any media without the involvement of a third-party publisher. Since the advent of the internet, self-published usually depends upon digital platforms and print-on-demand technology, ranging fr ...
books by Zotikov


=Non-fiction

= * ''460 days in the Fourth Soviet Antarctic Expedition'' () * ''Year of the American polar explorers'' () * ''Unraveling the mysteries of the icy continent'' () * ''Winter Soldiers'' ()


=Fiction

= * ''I was not looking for a kiwi bird'' () * ''Picnic on the Appalachian Trail'' () * ''Royal Musketeers'' () * ''Sex without borders'' () * ''Captain Flint's Gold'' () * ''Assassin's Remorse'' () * ''Exorcist and Prince of Darkness'' () * ''War of Two Worlds 2. Battle on Earth'' () * ''Return shot Rook'' () * ''Exorcist and Fire God'' () * ''The story of the Jester ()


Scientific publications

* ''Bottom melting in the central zone of the ice shield of the Antarctic continent and its influence upon the present balance of the ice mass'' (1963).
International Association of Hydrological Sciences The International Association of Hydrological Sciences (IAHS) is a non-profit, non-governmental scientific organization committed to serving the science of hydrology and the worldwide community of hydrologists. The IAHS was established in 1922, ...
* ''The Thermal and Compositional Structure of the Koettlitz Ice Tongue, McMurdo Sound, Antarctica'' (1966). International Conference on Low Temperature Science; Conference on Physics of Snow and Ice; Conference on Cryobiology. * Thermal Drilling of the Glacier (1974).
Cold Regions Research and Engineering Laboratory The Cold Regions Research and Engineering Laboratory (CRREL) is a United States Army Corps of Engineers, Engineer Research and Development Center research facility headquartered in Hanover, New Hampshire, that provides scientific and engineering ...
for the
National Science Foundation The U.S. National Science Foundation (NSF) is an Independent agencies of the United States government#Examples of independent agencies, independent agency of the Federal government of the United States, United States federal government that su ...
* ''Antifreeze-thermodrilling for Core Through the Central Part of the Ross Ice Shelf (J-9 Camp), Antarctica'' (1979).
Cold Regions Research and Engineering Laboratory The Cold Regions Research and Engineering Laboratory (CRREL) is a United States Army Corps of Engineers, Engineer Research and Development Center research facility headquartered in Hanover, New Hampshire, that provides scientific and engineering ...
for the
National Science Foundation The U.S. National Science Foundation (NSF) is an Independent agencies of the United States government#Examples of independent agencies, independent agency of the Federal government of the United States, United States federal government that su ...
* ''Core Drilling Through the Ross Ice Shelf (Antarctica) Confirmed Basal Freezing'' (1980).
Science Science is a systematic discipline that builds and organises knowledge in the form of testable hypotheses and predictions about the universe. Modern science is typically divided into twoor threemajor branches: the natural sciences, which stu ...
* ''Large deep freshwater lake beneath the ice of central East Antarctica'' (1996).
Nature Nature is an inherent character or constitution, particularly of the Ecosphere (planetary), ecosphere or the universe as a whole. In this general sense nature refers to the Scientific law, laws, elements and phenomenon, phenomena of the physic ...
* ''The Kolka-Karmadon rock/ice slide of 20 September 2002: An extraordinary event of historical dimensions in North Ossetia, Russian Caucasus'' (2004).
Journal of Glaciology A journal, from the Old French ''journal'' (meaning "daily"), may refer to: *Bullet journal, a method of personal organization *Diary, a record of personal secretive thoughts and as open book to personal therapy or used to feel connected to onesel ...


Notes

:a.


References


External links

* Profile of Igor Alekseevich Zotikov on the official website of the
Russian Academy of Sciences The Russian Academy of Sciences (RAS; ''Rossíyskaya akadémiya naúk'') consists of the national academy of Russia; a network of scientific research institutes from across the Russian Federation; and additional scientific and social units such ...
*
Self-published Self-publishing is an author-driven publication of any media without the involvement of a third-party publisher. Since the advent of the internet, self-published usually depends upon digital platforms and print-on-demand technology, ranging fr ...
books (Fiction) by Igor Zotikov {{DEFAULTSORT:Zotikov, Igor Moscow Aviation Institute alumni People of Antarctica Corresponding Members of the Russian Academy of Sciences 1926 births 2010 deaths