Columbia subject headings:
Schmidt, Arno, 1914-1979--Study and teaching.
Schmidt, Arno, 1914-1979. Zettels Traum.
Harvard subject headings:
Schmidt, Arno, 1914-1979--Study and teaching.
Schmidt, Arno, 1914-1979. Zettels Traum.
Princeton subject headings:
Schmidt, Arno, 1914-1979--Study and teaching.
Schmidt, Arno, 1914-1979. Zettels Traum.