Columbia subject headings:
Harvard subject headings:
Germany (East)--Relations--Germany (West)
Germany (West)--Relations--Germany (East)
Hesse (Germany)--Relations--Germany--Thuringia.
Thuringia (Germany)--Relations--Hesse-Kassel (Electorate)
Princeton subject headings:
Hesse (Germany)--History--20th century.
Thuringia (Germany)--History--20th century.