Columbia subject headings:
Altenberger Dom (Altenberg, Odenthal, Germany)
Architecture, Romanesque--Germany (West)
Cistercian architecture--Germany (West)
Harvard subject headings:
Architecture, Romanesque--Germany (West)
Zisterzienserabtei Altenberg.
Princeton subject headings:
Architecture, Romanesque--Germany (West).
Zisterzienserabtei Altenberg.