Columbia subject headings:
Harvard subject headings:
Böll, Heinrich, 1917-1985--Correspondence.
Böll, Heinrich, 1917-1985--Friends and associates.
Böll, Heinrich, 1917-1985--Political and social views.
Germany--Politics and government--1945-1990.
Kopelev, Lev, 1912-1997--Correspondence.
Kopelev, Lev, 1912-1997--Friends and associates.
Kopelev, Lev, 1912-1997--Political and social views.
Soviet Union--Politics and government--1945-1991.
Soviet Union--Politics and government--1953-1985.
Princeton subject headings:
Böll, Heinrich, 1917-1985.
Kopelev, Lev, 1912-1997.