Columbia subject headings:
Entertainers--Austria--Biography--Congresses.
Grünbaum, Fritz, 1880-1941--Congresses.
Music-halls (Variety-theaters, cabarets, etc.)--Austria--Vienna--History--20th century--Congresses.
Harvard subject headings:
Entertainers--Austria--Biography--Congresses.
Grünbaum, Fritz, 1880-1941--Congresses.
Music-halls (Variety-theaters, cabarets, etc.)--Austria--Vienna--History--20th century--Congresses.
Princeton subject headings:
Entertainers--Austria--Biography--Congresses.
Grünbaum, Fritz, 1880-1941--Congresses.
Music-halls (Variety-theaters, cabarets, etc.)--Austria--Vienna--History--20th century--Congresses.