Columbia subject headings:
Apartment houses--Designs and plans--Germany--History--20th century.
Apartment houses--Germany--History--20th century.
Harvard subject headings:
Apartment houses--Germany--Designs and plans.
Apartment houses--Germany--History--20th century.
Barrier-free design--Germany.
Dwellings--Remodeling--Germany.
Interior architecture.
Public housing--Germany.
Princeton subject headings: