Catalogue raisonné (Werkverzeichnis), 1969 - 2017
21.07.1985felt pen drawing 21 x 29,7 cm
17.08.1985 felt pen drawing 21 x 29,7 cm
02.08.1985 felt pen drawing 21 x 29,7
14.4.1985 felt pen drawing21 x 29,7 cm