text by Carl Andre, Terry Atkinson, Mel Bochner, John N. Chandler, Enno Develing, Dan Flavin, Dan Graham, Coosje Kapteyn-van Bruggen, Eva Hesse, Michael Kirby, Rosalind Kraus, Ira Licht, Lucy Lippard, Dick van der Net, Barbara M. Reise, Hans Strelow, Lawrence Weiner