Columbia subject headings:
Authors, German--20th century--Correspondence.
Brinkmann, Rolf Dieter--Correspondence.
Schnell, Hartmut--Correspondence.
Harvard subject headings:
Authors, German--20th century--Correspondence
Brinkmann, Rolf Dieter--Correspondence.
Schnell, Hartmut--Correspondence.
Princeton subject headings:
Authors, German--20th century--Correspondence.
Brinkmann, Rolf Dieter--Correspondence.
Schnell, Hartmut--Correspondence.