Columbia subject headings:
Harvard subject headings:
Bachmann, Ingeborg, 1926-1973--Correspondence.
Celan, Paul--Correspondence.
Celan-Lestrange, Gisèle--Correspondence.
Frisch, Max, 1911-1991--Correspondence.
Princeton subject headings:
Bachmann, Ingeborg, 1926-1973--Correspondence.
Celan, Paul--Correspondence.
Celan-Lestrange, Gisèle--Correspondence.
Frisch, Max, 1911-1991. Correspondence.