Columbia subject headings:
Evangelische Gesamtschule Gelsenkirchen-Bismarck--Buildings--Pictorial works.
Evangelische Gesamtschule Gelsenkirchen-Bismarck--Students.
Gelsenkirchen (Germany)--Buildings, structures, etc.--Pictorial works.
School buildings--Germany--Gelsenkirchen--Design and construction--Pictorial works.
Harvard subject headings:
School buildings--Germany--Gelsenkirchen--Design and construction--Citizen participation.
Princeton subject headings: