Columbia subject headings:
Harvard subject headings:
Heidegger, Elfride, 1893-1992--Correspondence.
Heidegger, Martin, 1889-1976--Archives.
Heidegger, Martin, 1889-1976--Correspondence.
Philosophers--Germany--Correspondence
Schloss, Walter, 1917-1994--Correspondence.
Social workers--Germany--Correspondence.
Princeton subject headings:
Heidegger, Martin, 1889-1976--Correspondence.
Schloss, Walter, 1917-1994--Correspondence.