Columbia subject headings:
Fahrner, Rudolf, 1903-1988--Correspondence.
Stettler, Michael--Correspondence.
Harvard subject headings:
Authors, German--20th century--Correspondence
Authors, Swiss--20th century--Correspondence
Fahrner, Rudolf, 1903-1988--Correspondence.
Stettler, Michael--Correspondence.
Princeton subject headings:
Fahrner, Rudolf, 1903-1988--Correspondence.
Fiction.
Stettler, Michael--Correspondence.