Columbia subject headings:
Harvard subject headings:
Austria--Emigration and immigration--History--Congresses.
Authors, Exiled--Austria--History--20th century--Congresses.
Authors, Exiled--Germany--History--20th century--Congresses.
Exiles--Austria--History--20th century--Congresses.
Exiles--Germany--History--20th century--Congresses.
Germany--Emigration and immigration--History--Congresses.
Return migration--Austria--History--Congresses.
Return migration--Germany--History--Congresses.
Princeton subject headings:
Austria--Emigration and immigration.
Authors, Exiled--Austria--History--20th century.
Authors, Exiled--Germany--History--20th century.
Exiles--Austria--History--20th century.
Exiles--Germany--History--20th century.
Germany--Emigration and immigration.
Return migration--Austria.
Return migration--Germany.