Columbia subject headings:
Blumenberg, Hans--Correspondence.
Philosophers--Germany--Biography.
Political scientists--Germany--Correspondence.
Schmitt, Carl, 1888-1985--Correspondence.
Harvard subject headings:
Blumenberg, Hans--Correspondence.
Philosophers--Correspondence.
Philosophy, Modern--20th century.
Schmitt, Carl, 1888-1985--Correspondence.
Princeton subject headings:
Blumenberg, Hans--Correspondence.
Philosophers--Germany--Correspondence.
Political scientists--Germany--Correspondence.
Schmitt, Carl, 1888-1985--Correspondence.