Columbia subject headings:
Arctic regions--Discovery and exploration--Soviet Union.
Explorers--Soviet Union--Biography.
Samoĭlovich, R. L. (Rudolʹf Lazarevich), 1881-1940.
Harvard subject headings:
Arctic regions--Discovery and exploration--Russian--Biography.
Geographers--Soviet Union--Biography
Jewish scientists--Soviet Union--Biography.
Samoĭlovich, R. L. (Rudolʹf Lazarevich), 1881-1940.
Victims of state-sponsored terrorism--Soviet Union--Biography.
Princeton subject headings: