Authors:

A piece of paper or a photograph is as much an object, or as 'material' as a ton of lead.

Lucy R. Lippard (1973). “Six Years: The Dematerialization of the Art Object from 1966 to 1972 ...”, p.5, Univ of California Press
A piece of paper or a photograph is as much an object, or as 'material' as a ton of lead.