Columbia subject headings:
Authors, German--Correspondence--Congresses.
German letters--History and criticism--Congresses.
Last letters before death--History--Congresses.
Letter writing, German--History--Congresses.
Love-letters--Germany--History--Congresses.
Harvard subject headings:
Authors, German--Correspondence--Congresses.
German letters--History and criticism--Congresses.
Last letters before death--History--Congresses.
Letter writing, German--History--Congresses.
Love-letters--Germany--History--Congresses.
Princeton subject headings:
Authors, German--Correspondence--Congresses.
German letters--History and criticism--Congresses.
Last letters before death--History--Congresses.
Letter writing, German--History--Congresses.
Love-letters--Germany--History--Congresses.