Columbia subject headings:
Authors, Czech--20th century--Correspondence.
Authors, Czech--20th century--Imprisonment.
Havel, Václav--Correspondence.
Havlová, Olga, 1933-1996--Correspondence.
Political prisoners--Czechoslovakia--Correspondence.
Harvard subject headings:
Authors, Czech--20th century--Correspondence.
Authors, Czech--20th century--Imprisonment--Czechoslovakia.
Havel, Václav--Correspondence.
Havlová, Olga--Correspondence.
Political prisoners--Czechoslovakia--Correspondence.
Princeton subject headings:
Authors, Czech--20th century--Correspondence.
Havel, Václav--Correspondence.
Havelová, Olga--Correspondence.