Modulation 1023 - 1990
Modulation 1039 - 1991
Modulation 1134 - 2003
Untitled - 1975
Untitled - 1978
Saturation metalice - 1978
Saturation metalice - 1987
Color - 1980
Interférences polychromes - 1975
D14 - 1970
1031 - 1980
Permutation - 1976
Untitled - 1966
288 - 1985
290 B - 1987
PYR 378 - 1973
PYR 513 - 1974-82
Ornamental variation 6 - 1987
Costellazioni - 1983