Columbia subject headings:
Architecture--Germany--Düsseldorf--History--21st century.
Düsseldorf (Germany)--Buildings, structures, etc.
Office buildings--Germany--Düsseldorf--Design and construction.
Public buildings--Germany--Düsseldorf--Design and construction.
Stadttor (Düsseldorf, Germany)
Harvard subject headings:
Architecture--Germany--Düsseldorf--21st century.
Canessa, Boris
Düsseldorf (Germany)--Buildings, structures, etc.
Engel, Peter Michael.
Office buildings--Germany--Düsseldorf--Design and construction.
Stadttor (Düsseldorf, Germany)
Princeton subject headings:
Architecture--Germany--Düsseldorf--21st century.
Düsseldorf (Germany)--Buildings, structures, etc.
Office buildings--Germany--Düsseldorf--Design and construction.
Public buildings--Germany--Düsseldorf--Design and construction.
Stadttor (Düsseldorf, Germany)