Joint Working Group on Environmental Atlases(2)
Institut für Geographie und Geoökologie (1976-1991)(1)
Kondracki, Jerzy (1908-1998)(1)
Lüdemann, Heinz (1928-1997)(1)
Martin-Luther-Universität Halle-Wittenberg. Sektion Geographie (1970-1989)(1)
Meeting of the Joint Working Group on Environmental Atlases (2, 1978, London)(1)
Meeting of the Joint Working Group on Environmental Atlases (5, 1980, Warsaw)(1)