Columbia subject headings:
Harvard subject headings:
Charta 77 (Group)--Periodicals.
Czechoslovakia--Politics and government--1968---Sources--Periodicals.
Princeton subject headings:
Charta 77 (Group)--Periodicals.
Czechoslovakia--Politics and government--1968-1989--Sources--Periodicals.
Czechoslovakia--Politics and government--1989-1992--Sources--Periodicals.