Behn, Helga

• Wolf Vostell: 'Ruhender Verkehr', 2. bis 29. Oktober 1969, Domstrasse 81 / Wolf Vostell: 'Ruhender Verkehr' (Stationary Traffic), October 2 to 29, 1969
  Sediment – Resources for and Studies in the History of the Art Market No. 31 (2020): Sediment
• Konkrete Kritik, 3. Dezember 1971 bis Januar 1972 / Konkrete Kritik, December 3, 1971, to January 1972
  Sediment – Resources for and Studies in the History of the Art Market No. 31 (2020): Sediment
• Diter Rot: Decomposition, 14. Oktober bis 10. November 1969 und 'Miau Miau', 5. bis 27. März 1971, Domstrasse 81 / Diter Rot: Decomposition, October 14 to November 10, 1969 and 'Miau Miau', March 5 to 27, 1971
  Sediment – Resources for and Studies in the History of the Art Market No. 31 (2020): Sediment
• Wolf Vostell: 'Utopische Betonierungen', 14. März bis 15. April 1970, Domstrasse 81 / Wolf Vostell: 'Utopische Betonierungen', March 14 to April 15, 1970
  Sediment – Resources for and Studies in the History of the Art Market No. 31 (2020): Sediment
• 1974-1999: Bonn: Rheinisches Landesmuseum
  Sediment – Resources for and Studies in the History of the Art Market No. 30 (2019): Sediment
• André Thomkins: Objekte aus Gummi und Palindrome, 8. Februar bis 6. März 1969), Domstrasse 81 / André Thomkins: (February 8 to March 6, 1969)
  Sediment – Resources for and Studies in the History of the Art Market No. 31 (2020): Sediment
• Thomas Bayrle: 'Grafik-Mäntel', 20. bis 25. Januar 1968 / Thomas Bayrle: 'Grafik-Mäntel', Januar 20 to 25, 1968
  Sediment – Resources for and Studies in the History of the Art Market No. 31 (2020): Sediment
• Helmut Rywelskis Einladungs- und Informationspost / Helmut Rywelski’s Invitations and Newsletters
  Sediment – Resources for and Studies in the History of the Art Market No. 31 (2020): Sediment