Ignore this box please.Search syntax
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site: domain search
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site:uk uk pages
f: find files
t: within title
b: within body
More explanation...Pyotr Petrovich Shirshov (Пётр Петрович Ширшов) (December 25 (O.S. December 12), 1905, Ekaterinoslav (today Dnipropetrovsk, Ukraine) - February 17, 1953, Moscow) was a Ukrainian Soviet oceanographer, hydrobiologist, polar explorer, statesman, academician (1939), and Hero of the Soviet Union (1938).