Columbia subject headings:
Harvard subject headings:
Germany (East)--History.
Germany (West)--Emigration and immigration--History.
Political refugees--Germany (East)--History.
Return migration--Germany (East)--History.
Zentrales Aufnahmeheim Röntgental--History.
Princeton subject headings:
Germany (East)--Biography.
Refugees--Germany (East)--Biography.
Return migration--Germany (East).