Columbia subject headings:
Harvard subject headings:
Gays--Germany--Hamburg--History--20th century.
Gays--Germany--Hamburg--Social conditions--20th century.
Gays--Nazi persecution--Germany--Hamburg.
Homophobia--Germany--Hamburg--History--20th century.
Princeton subject headings:
Gays--Germany--Hamburg--Social conditions--20th century.
Gays--Nazi persecution--Germany--Hamburg.
Homophobia--Germany--Hamburg--History--20th century.