@Unpublished{K-theory/0576,
  author = 	 {{Ivan A. Panin and Serge A. Yagunov}},
  title = 	 {{Poincare Duality for Algebraic Varieties.}},
  note = 	 {{Preprint, June 9, 2002, K-theory Preprint Archives, http://www.math.uiuc.edu/K-theory/0576/}}}
}