Columbia subject headings:
Harvard subject headings:
Dissenters--Soviet Union--Biography
Plyushch, Leonid, 1939-
Political prisoners--Soviet Union--Biography
Psychiatric hospitals--Soviet Union
Soviet Union--Politics and government--1953-1985.
Princeton subject headings:
Plyushch, Leonid, 1939-2015.
Political prisoners--Soviet Union--Biography.
Psychiatric hospitals--Soviet Union.
Soviet Union--Politics and government--1953-.