@Unpublished{K-theory/0596,
  author = 	 {{Bruno Kahn and R. Sujatha}},
  title = 	 {{Birational motives, I}},
  note = 	 {{Preprint, October 30, 2002, K-theory Preprint Archives, http://www.math.uiuc.edu/K-theory/0596/}}}
}