Columbia subject headings:
Austria--Relations--Soviet Union.
Soviet Union--Foreign relations--1945-1991.
Soviet Union--Relations--Austria.
Harvard subject headings:
Austria--Relations--Soviet Union.
Soviet Union--Foreign relations--1945-1991.
Soviet Union--Relations--Austria.
Princeton subject headings:
Austria--Relations--Soviet Union.
Soviet Union--Foreign relations--1945-1991.
Soviet Union--Relations--Austria.