@Unpublished{K-theory/0940,
  author = 	 {{Joël Riou}},
  title = 	 {{Algebraic K-theory, A^1-homotopy and Riemann-Roch theorems}},
  note = 	 {{Preprint, August 13, 2009, K-theory Preprint Archives, http://www.math.uiuc.edu/K-theory/0940/}}}
}