Die Innerdeutsche Grenze. - Germany (West). Bundesministerium für Innerdeutsche Beziehungen ([Bonn] : Bundesministerium für innerdeutsche Beziehungen, 1987)
Bibliography: p. 113.
Mode of access: Internet.
Keywords: Germany (East) -- Boundaries -- Germany (West); Germany (West) -- Boundaries -- Germany (East)