Modular Cube,
1967Squares with Sides Torn Off, 1976 / Modular Cube, 1967
(Raas Van Gaverestraat, Gand)Incomplete Open Cubes 6/1, 9/4, 8/10, 8/19, 8/22, 10/1,
1974Lines, not Straight, from the Top and the Left Side,
1972Lines, not Straight, from the Left Side,
1972