Columbia subject headings:
Architecture--Germany--Halle an der Saale--Congresses.
Dolgner, Dieter.
Halle an der Saale (Germany)--Buildings, structures, etc.
Historic buildings--Germany--Halle an der Saale--Congresses.
Harvard subject headings:
Architecture--Germany--Halle an der Saale--Congresses.
Halle an der Saale (Germany)--Buildings, structures, etc.--Congresses.
Historic buildings--Germany--Halle an der Saale--Congresses.
Princeton subject headings: