Dennis Oppenheim
[Artist, b. 1938, Electric City, Washington, d. 2011, New York.]

 You can’t understand how strange it was to be a sculptor who exhibited photographs. (On exhibitions of his “earthworks” and land art pieces.) 
 The photograph gives constant reference to the rectangle. This forces any idea into the confines of pictorial illusionism. 
 [The photographs] were there simply to indicate a radical art that had already vanished. The photograph was necessary only as a residue for communication. 
 Photographs represented the work [and] everything closed down into a pictorial configuration. (On exhibitions of his “earthworks” and land art pieces.)