@Unpublished{K-theory/0400,
  author = 	 {{Gabriele Vezzosi}},
  title = 	 {{Brown-Peterson spectra in stable A^1-homotopy theory}},
  note = 	 {{Preprint, April 9, 2000, K-theory Preprint Archives, http://www.math.uiuc.edu/K-theory/0400/}}}
}