@Unpublished{K-theory/0522,
  author = 	 {{Yves André and Bruno Kahn}},
  title = 	 {{Construction inconditionnelle de groupes de Galois motiviques}},
  note = 	 {{Preprint, October 29, 2001, K-theory Preprint Archives, http://www.math.uiuc.edu/K-theory/0522/}}}
}