Columbia subject headings:
Artists--Austria.
Artists--Correspondence--Congresses.
Artists--Germany.
Authors, Austrian--Correspondence--Congresses.
Authors, Exiled--Correspondence--Congresses.
Authors, German--Correspondence--Congresses.
Expatriate artists--Correspondence--Congresses.
Harvard subject headings:
Artists--Correspondence--Congresses.
Authors, Austrian--Correspondence--Congresses.
Authors, Exiled--Correspondence--Congresses.
Authors, German--Correspondence--Congresses.
Expatriate artists--Correspondence--Congresses.
German letters--History and criticism--Congresses.
Princeton subject headings:
Artists--Austria.
Artists--Correspondence--Congresses.
Artists--Germany.
Authors, Austrian--Correspondence--Congresses.
Authors, Exiled--Correspondence--Congresses.
Authors, German--Correspondence--Congresses.
Expatriate artists--Correspondence--Congresses.