Global conceptualism - Points of origin, 1950s - 1980s : [to accompany the exhibition 'Global Conceptualism: Points of Origin, 1950s - 1980s' ; exhibition tour: Queens Museum of Art, New York, April 28 - August 29, 1999 ; Walker Art Center, Minneapolis, December 19, 1999 - March 5, 2000 ; Miami Art Museum, Miami, September 15 - November 26, 2000]