Columbia subject headings:
Authors, Exiled--Germany--Congresses.
Authors, German--20th century--Political and social views--Congresses.
Berlin (Germany)--Emigration and immigration--History--20th century--Congresses.
Harvard subject headings:
Artists--Germany--Berlin--Congresses.
Authors, Exiled--Germany--Berlin--Congresses.
Berlin (Germany)--History--20th century--Congresses.
Berlin (Germany)--In art--Congresses.
Berlin (Germany)--In literature--Congresses.
Exiles--Germany--Berlin--Congresses.
Princeton subject headings:
Authors, Exiled--Germany--Congresses.
Authors, German--20th century--Political and social views--Congresses.
Berlin (Germany)--Emigration and immigration--History--20th century--Congresses.