Columbia subject headings:
Architecture, Domestic--Europe, German-speaking.
Architecture--Competitions--Europe, German-speaking.
Architecture--Europe, German-speaking--History--20th century.
Mansions--Europe, German-speaking--20th century.
Harvard subject headings:
Architecture, Domestic--Austria.
Architecture, Domestic--Europe, German-speaking.
Architecture, Domestic--Germany
Architecture, Domestic--Switzerland
Architecture--Competitions--Europe, German-speaking.
Architecture--Europe, German-speaking--History.
Country homes--Austria.
Country homes--Germany.
Country homes--Switzerland.
Mansions--Europe, German-speaking--20th century.
Princeton subject headings: