@Unpublished{K-theory/0978,
  author = 	 {{Ivan Panin and Charles Walter}},
  title = 	 {{On the motivic commutative ring spectrum BO}},
  note = 	 {{Preprint, November 2, 2010, K-theory Preprint Archives, http://www.math.uiuc.edu/K-theory/0978/}}}
}