@Unpublished{K-theory/0061,
  author = 	 {{Igor Kriz and Peter May}},
  title = 	 {{Operads, Algebras, Modules, and Motives}},
  note = 	 {{Preprint, March 3, 1995, K-theory Preprint Archives, http://www.math.uiuc.edu/K-theory/0061/}}}
}