gudrun piper, 1994–95, roma I; roma II
1994-95
gudrun piper, 1993, linearefolge im quadrat a; b; c
1993
gudrun piper, 1987, quadriga 1b; 3b
1987
gudrun piper, 1987, winkel in weiss
gudrun piper, 1987, winkel in weiss 3a; 3b
gudrun piper, 1984, quadrate in quadrateinheiten a-b; c-d; e-f
1984
gudrun piper, 1978, quadrate in quadraten c
1994-95
gudrun piper, 1994–95, roma I; roma II
1993
gudrun piper, 1993, linearefolge im quadrat a; b; c
1987
gudrun piper, 1987, quadriga 1b; 3b
gudrun piper, 1987, winkel in weiss
gudrun piper, 1987, winkel in weiss 3a; 3b
1984
gudrun piper, 1984, quadrate in quadrateinheiten a-b; c-d; e-f
1978
gudrun piper, 1978, quadrate in quadraten c