Columbia subject headings:
Authors, Austrian--20th century--Biography--Congresses.
Däubler, Theodor--Congresses.
Harvard subject headings:
Authors, Austrian--20th century--Biography--Congresses.
Däubler, Theodor--Congresses.
Princeton subject headings:
Authors, Austrian--20th century--Biography--Congresses.
Däubler, Theodor--Congresses.