Rectangles yellow, blue and black
1953
Relief 14/268 Auflösungszeichen
1968
Repentirs
1992
Return to Square A
1967 / 68
Return to Square B
1967 / 68
Running Cola is Africa!
1968
Schleife
1985
Schotter
Shot Kennedy No. 1
1967 / 68
Shot Kennedy No. 2
1967 / 68
Simulated Color Mosaic
1969
Sine Curve Man (1967)
1967
Sine Curve Man (1968)
1967-1968?
Sine Curve Man (1969)
1969
Sineman Two
1967
Sommaire 7
1994
Sonne über dem Wasser
1982
Squares, 1974
1974
Struktur von Vierecken
1988
Tangent Landscape
1967
Tecumseh
1973
Title Unkown
1979
Transformation of 64 squares
1974
Transformation von 8 x 8 Quadraten
1973
Transjovian Pipeline
1979
Untitled
1969
Untitled
1971
Untitled
1968
Untitled
1970