Columbia subject headings:
Architecture--Competitions--Germany--History--20th century.
Architecture--Germany--History--20th century.
City planning--Competitions--Germany--History--20th century.
City planning--Germany--History--20th century.
Harvard subject headings:
Architecture--Competitions--Germany--History--20th century.
Architecture--Germany--History--20th century
City planning--Competitions--Germany--History--20th century.
City planning--Germany
City planning--Germany--History--20th century.
Princeton subject headings: