Columbia subject headings:
Conference papers and proceedings.
Europe, Eastern--Politics and government--1945-1989--Congresses.
Europe, Eastern--Politics and government--1989---Congresses.
Soviet Union--Politics and government--1985-1991--Congresses.
Harvard subject headings:
Conference papers and proceedings.
Europe, Eastern--Politics and government--1945-1989--Congresses.
Europe, Eastern--Politics and government--1989---Congresses.
Soviet Union--History--1985-1991--Congresses.
Soviet Union--Politics and government--1985-1991--Congresses.
Princeton subject headings: