Columbia subject headings:
Harvard subject headings:
Gay rights--Germany--History--20th century.
Germany--Social conditions--20th century.
Homosexuality--Germany--History--20th century.
Homosexuality--Law and legislation--Germany--History--20th century.
Prostitution--Germany--History--20th century.
Prostitution--Law and legislation--Germany.
Sexual freedom--Political aspects--Germany--History--20th century.
Princeton subject headings:
Gays--Germany--Social conditions--History.
National socialism and homosexuality.