@Unpublished{K-theory/0794,
  author = 	 {{Fabien Morel}},
  title = 	 {{On the structure of A^1-homotopy sheaves, I}},
  note = 	 {{Preprint, July 26, 2006, K-theory Preprint Archives, http://www.math.uiuc.edu/K-theory/0794/}}}
}