Lewitt. Vogel collection , Kunsthalle Bielefeld# BEYOND THE PICTURE #1987, nm++
Robert Barry # WORDS, SPACE, SOUND, TIME#nm+, 1989
Rudi Fuchs, Debbaut # ROBERT BARRY# 1977, nm-
Stedelijk Museum # ROBERT BARRY #nm+,1974
van Abbemuseum # ROBERT BARRY / Otherwise#1981, sealed!