Columbia subject headings:
Harvard subject headings:
Authors, Exiled--Correspondence.
Lasker-Schüler, Else, 1869-1945--Correspondence.
Poets, German--20th century--Correspondence.
Princeton subject headings:
Authors, German--20th century--Correspondence.
Kraus, Karl, 1874-1936--Correspondence.
Lasker-Schüler, Else, 1869-1945--Correspondence.