Program No. 112
1972-1973
Programa Beabeá
1969
Programm 35
1971
Programm 49
1970
Programm 50
1970
Programm 71
Prostor
1969
Protectoroid
1986
QU 4 ST
Quad II
1968
Quad III
1969
Quad IV
Quadrate
1969/1970
Quand Même
1973
Rahmenwerk Plus
1986
Random 63
1969
Random Dot Stereogram
Random Movement (Completed Study # 1)
1968
Random Walk Kennedy
1967
Random War
1967
Random light and shadow
1967
Rectangles yellow, blue and black
1953
Red Tree
1972
Redundanz 0,32
undated
Redwindow
1923
Relache02
1992
Relative Primzahlen
1972
Relief 14/268 Auflösungszeichen
1968
Relief in der Betonwand
Relief
1966/67