@Unpublished{K-theory/0783,
  author = 	 {{G. Cortinas , C. Haesemeyer , and C. A. Weibel }},
  title = 	 {{K-regularity, cdh-fibrant Hochschild homology, and a conjecture of Vorst }},
  note = 	 {{Preprint, May 15, 2006, K-theory Preprint Archives, http://www.math.uiuc.edu/K-theory/0783/}}}
}