Columbia subject headings:
Dechau, Wilfried.
Germany--Buildings, structures, etc.
Islam--Germany--Exhibitions.
Islamic architecture--Germany--Exhibitions.
Mosques--Germany--Exhibitions.
Muslims--Germany--Exhibitions.
Harvard subject headings:
Dechau, Wilfried--Exhibitions.
Germany--Buildings, structures, etc.
Mosques--Germany--Pictorial works--Exhibitions.
Muslims--Germany--Pictorial works--Exhibitions.
Princeton subject headings: