Serie grün
1974
Series of Pattern: Flow
1964
Serigraph
undated
Shades of Hades
1972/74
Shakespeare
1973
Shattered glass
1967
Shell
1976
Shift
1970
Short&Curlies
1993
Shot Kennedy No. 1
1967 / 68
Shot Kennedy No. 2
1967 / 68
Sieguebersonne
1912
Silver Clouds
1966
Simulated Basilar Membrane Motion (3-D)
1966
Simulated Color Mosaic
1969
Sin-Spirale
1973
Sine Curve Man (1967)
1967
Sine Curve Man (1968)
1967-1968?
Sine Curve Man (1969)
1969
Sineman Two
1967
Sinescape
1967
Sinographs Nr. 54, 67, 93
Sixteen
1976
Sketch for a mural
1969
Sketchbook
1975
Skizzen zu Velen
1972
Skulptur 2/86 (I) | sculpture 2/86 (I)
Skyscrapers on Transparent Yellow
1929
Slant
1969
Snail
mid 1960s