Columbia subject headings:
Harvard subject headings:
Heer, Friedrich, 1916-1983--Congresses.
Historians--Austria--Congresses.
Historiography--Austria--Congresses.
Princeton subject headings:
Austria--History--20th century--Congresses.
Essayists--Austria--History--20th century--Congresses.
Heer, Friedrich, 1916-1983.
Historians--Austria--History--20th century--Congresses.
Humanism--Austria--History--20th century--Congresses.