Columbia subject headings:
Catholic Church--Relations--Protestant churches.
Protestant churches--Relations--Catholic Church.
Theology, Doctrinal.
Ökumenischer Arbeitskreis Evangelischer und Katholischer Theologen (Germany)
Harvard subject headings:
Catholic Church--Relations--Protestant churches.
Christian union conversations--Germany--History--20th century.
Germany--Church history--1945-
Ökumenischer Arbeitskreis Evangelischer und Katholischer Theologen (Germany)--History.
Protestant churches--Relations--Catholic Church
Theology, Doctrinal--Germany--History--20th century.
Princeton subject headings: