Columbia subject headings:
Architects--Germany--Interviews.
Ruhnau, Werner--Aesthetics.
Ruhnau, Werner--Interviews.
Space (Architecture)
Harvard subject headings:
Architects--Germany
Architecture--Germany--21st century.
Architecture--Germany--History--20th century
Ruhnau, Werner, 1922---Exhibitions.
Princeton subject headings:
Architects--Germany--Interviews.
Interviews.
Ruhnau, Werner--Aesthetics.
Ruhnau, Werner--Interviews.
Space (Architecture)