Columbia subject headings:
Harvard subject headings:
Discrimination--Law and legislation--Germany--History--20th century.
Gay men--Germany--History--20th century.
Gays--Germany--History--20th century.
Lesbians--Germany--History--20th century.
Princeton subject headings:
Discrimination--Law and legislation--Germany--History--20th century.
Gay men--Germany--History--20th century.
Gays--Germany--History--20th century.
Lesbians--Germany--History--20th century.