Member of the Working Group Die Pariser Kommune 1871 in zeitgenössischen Dokumenten (1971–1972) Kunst der Bürgerlichen Revolution 1830–1848/49 (1972–1973) Politische Konstruktivisten – Die „Progressiven“ 1919-1933 (1975) Please note: The details of people/the projects they took part in are incomplete. ID 659