Columbia subject headings:
Architecture, Domestic--Switzerland--20th century.
Architecture--Switzerland--History--20th century.
Eckert Eckert Architekten.
Harvard subject headings:
Apartment houses--Switzerland--Broëlberg--Designs and plans.
Eckert Eckert Architekten.
Eckert, Piet.
Eckert, Wim.
Planned communities--Switzerland--Broëlberg.
Princeton subject headings: