• Exhibition, Light – Space - Color, Kunst- und Ausstellungshalle der BRD, Bonn, 2011, <br />photo: Studio Mack
    Exhibition, Light – Space - Color, Kunst- und Ausstellungshalle der BRD, Bonn, 2011,
    photo: Studio Mack
  • Exhibition, Between the Times, Museum Ostwall, Dortmund, 2012, photo: Studio Mack
    Exhibition, Between the Times, Museum Ostwall, Dortmund, 2012, photo: Studio Mack
  • Rotors and reliefs, German pavilion of the 35th Biennale, Venice, 1970, photo: Heinz Mack
    Rotors and reliefs, German pavilion of the 35th Biennale, Venice, 1970, photo: Heinz Mack
  • Sculpture garden of the artist, Mönchengladbach, photo: Heinz Mack
    Sculpture garden of the artist, Mönchengladbach, photo: Heinz Mack