Columbia subject headings:
Confession (Liturgy)
Reformation--Germany--Wittenberg (Saxony-Anhalt)
Harvard subject headings:
Confession--Lutheran Church--History--Congresses.
Lutheran Church--Creeds--History and criticism--Congresses.
Reformation--Germany--Wittenberg (Saxony-Anhalt)--Congresses.
Wittenberg (Saxony-Anhalt, Germany)--Church history--16th century--Congresses.
Princeton subject headings: