Columbia subject headings:
German literature--History and criticism.
Thelen, Albert Vigoleis, 1903-1989--Criticism and interpretation.
Harvard subject headings:
German literature--History and criticism--Congresses
Thelen, Albert Vigoleis, 1903-1989--Criticism and interpretation--Congresses.
Princeton subject headings:
Thelen, Albert Vigoleis, 1903-1989--History and criticism.