@Unpublished{K-theory/0305,
  author = 	 {{Fabien Morel and Vladimir Voevodsky}},
  title = 	 {{A^1-homotopy theory of schemes}},
  note = 	 {{Preprint, October 6, 1998, K-theory Preprint Archives, http://www.math.uiuc.edu/K-theory/0305/}}}
}