Columbia subject headings:
Harvard subject headings:
Authors, German--20th century--Biography--Congresses.
Kirsten, Wulf, 1934---Interviews--Congresses.
Pitschmann, Siegfried, 1930---Criticism and interpretation--Congresses.
Pitschmann, Siegfried, 1930---Interviews--Congresses.
Princeton subject headings:
Pitschmann, Siegfried, 1930-2002--Congresses.