Catalogue published on the occasion of an exhibition ath the Van Abbemuseum in Eindhoven, the Netherlands, 1977, each page features on its centre the same grid of blue lines reminiscent of graph paper, two black vertical lines are situated either in this grid or in the margins next to it and in doing so these configurations enact the title of the work,
Soft cover, 27 x 21 cm, 48 not numbered pages, ed/750, Eindhoven 1977
