
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