@Unpublished{K-theory/0109,
  author = 	 {{Marek Szyjewski}},
  title = 	 {{On the Witt ring of a Grassmann variety}},
  note = 	 {{Preprint, March 13, 1996, K-theory Preprint Archives, http://www.math.uiuc.edu/K-theory/0109/}}}
}