Columbia subject headings:
Architecture--Germany--Frankfurt am Main--History.
City planning--Germany--Frankfurt am Main.
Frankfurt am Main (Germany)--Buildings, structures, etc.
Harvard subject headings:
Architects--Germany
Architecture, Modern--20th century--Germany--Frankfurt am Main--Designs and plans.
City planning--Germany--Frankfurt am Main
Frankfurt am Main (Germany)--Buildings, structures, etc.--Designs and plans.
Mäckler, Christoph, 1951-
Princeton subject headings: