Columbia subject headings:
Germany--Politics and government--1990-
Korea (North)--Relations--Korea (South)
Korea (South)--Relations--Korea (North)
Harvard subject headings:
Germany--History--Unification, 1990--Congresses.
Germany--Politics and government--1990-
Germany--Politics and government--1990---Congresses.
Korea (North)--Relations--Korea (South)
Korea (North)--Relations--Korea (South)--Congresses.
Korea (South)--Relations--Korea (North)
Korea (South)--Relations--Korea (North)--Congresses.
Princeton subject headings:
Germany--Politics and government--1990-
Korea (North)--Relations--Korea (South)
Korea (South)--Relations--Korea (North)