Columbia subject headings:
Church architecture--Germany--Schleswig-Holstein--Congresses.
Monasteries and state--Germany--Schleswig-Holstein--History--Congresses.
Schleswig-Holstein (Germany)--Church history--Congresses.
Sønderjyllands amt (Denmark)--Church history--Congresses.
Harvard subject headings:
Monasteries--Germany--Schleswig-Holstein--History--Congresses.
Princeton subject headings:
Monasteries--Germany--Schleswig-Holstein--History--Congresses.