Columbia subject headings:
Architects--Austria.
Architecture--Europe--History--20th century.
Architecture--Europe--History--21st century.
Riepl Riepl Architekten.
Riepl, Gabriele.
Riepl, Peter.
Harvard subject headings:
Architectural firms--Austria.
Architecture--Austria--21st century.
Riepl Riepl Architekten.
Princeton subject headings: