Columbia subject headings:
Billinger, Richard, 1890-1965--Congresses.
Gay men--Austria--20th century--Congresses.
National socialism and literature--Austria--Congresses.
Harvard subject headings:
Billinger, Richard, 1890-1965--Congresses.
Gay men--Austria--20th century--Congresses.
National socialism and literature--Austria--Congresses.
Princeton subject headings:
Billinger, Richard, 1890-1965--Congresses.
Gay men--Austria--20th century--Congresses.
National socialism and literature--Austria--Congresses.