Columbia subject headings:
Dissenters--Soviet Union--Biography.
Human rights workers--Soviet Union--Biography.
Orlov, Yuri, 1924-
Physicists--Soviet Union--Biography.
Political prisoners--Soviet Union--Biography.
Soviet Union--Politics and government.
Harvard subject headings:
Dissenters--Soviet Union--Biography
Orlov, Yuri, 1924-
Physicists--Soviet Union--Biography
Political prisoners--Soviet Union--Biography
Princeton subject headings:
Human rights workers--Soviet Union--Biography.
Orlov, Yuri, 1924-
Physicists--Soviet Union--Biography.