Columbia subject headings:
Architecture--Germany (West)--History--Exhibitions.
Striffler, Helmut, 1927---Exhibitions.
Harvard subject headings:
Architecture, Modern--20th century--Germany (West)--Exhibitions.
Striffler, Helmut, 1927---Exhibitions.
Princeton subject headings:
Architecture, Modern--20th century--Germany (West)--Exhibitions.
Striffler, Helmut, 1927---Exhibitions.