Columbia subject headings:
Kesten, Hermann, 1900-1996--Correspondence.
Schoenberner, Franz, 1892-1970--Correspondence.
Harvard subject headings:
Kesten, Hermann, 1900-1996--Correspondence.
Schoenberner, Franz, 1892---Correspondence.
Princeton subject headings:
Kesten, Hermann, 1900-1996--Correspondence.
Schoenberner, Franz, 1892-1970--Correspondence.