Columbia subject headings:
Architectural firms--Germany.
Architecture--Germany--History--21st century.
Nickl & Partner.
Harvard subject headings:
Architectural firms--Germany.
Architecture, Modern--21st century
Architecture--Germany--21st century.
Nickl & Partner.
Nickl, Hans.
Nickl-Weller, Christine.
Princeton subject headings:
Architectural firms--Germany.
Architecture--Germany--21st century.
Nickl & Partner.