@Unpublished{K-theory/0044,
  author = 	 {{Joerg Wildeshaus}},
  title = 	 {{Polylogarithmic Extensions on Mixed Shimura varieties. Part I Construction and basic properties}},
  note = 	 {{Preprint, November 26, 1994, K-theory Preprint Archives, http://www.math.uiuc.edu/K-theory/0044/}}}
}