Columbia subject headings:
Architecture--Switzerland--History--20th century.
Gigon & Guyer.
Harvard subject headings:
Architects--Switzerland.
Architectural firms--Switzerland.
Architecture, Modern--20th century--Switzerland.
Architecture, Modern--21st century
Architecture, Modern--Switzerland--20th century.
Gignon, Annette.
Gigon & Guyer
Gigon, Guyer Architekten.
Guyer, Mike.
Princeton subject headings: