@Unpublished{K-theory/0894,
  author = 	 {{Bruno Kahn and R. Sujatha}},
  title = 	 {{Birational geometry and localisation of categories}},
  note = 	 {{Preprint, May 24, 2008, K-theory Preprint Archives, http://www.math.uiuc.edu/K-theory/0894/}}}
}