Columbia subject headings:
Harvard subject headings:
Germany--History--20th century--Congresses.
Left-wing extremists--Germany--History--20th century--Congresses.
Rote Armee Fraktion--History--Congresses.
Rote Armee Fraktion--Trials, litigation, etc.--Congresses.
Terrorism--Germany--History--20th century--Congresses.
Princeton subject headings:
Germany--History--20th century--Congresses.
Left-wing extremists--Germany--History--20th century--Congresses.
Rote Armee Fraktion--History--Congresses.
Rote Armee Fraktion--Trials, litigation, etc.--Congresses.
Terrorism--Germany--History--20th century--Congresses.