Columbia subject headings:
Reformation--Germany--Schleswig-Holstein--Congresses.
Schleswig-Holstein (Germany)--Church history--Congresses.
Harvard subject headings:
Reformation--Germany--Schleswig-Holstein--Congresses.
Schleswig-Holstein (Germany)--Church history--Congresses.
Princeton subject headings:
Conference papers and proceedings.
Reformation--Germany--Schleswig-Holstein--Congresses.
Schleswig-Holstein (Germany)--Church history--Congresses.