@Unpublished{K-theory/0190,
  author = 	 {{Gabor Elek}},
  title = 	 {{ The Hochschild cohomologies of translation algebras and group cohomologies}},
  note = 	 {{Preprint, April 26, 1997, K-theory Preprint Archives, http://www.math.uiuc.edu/K-theory/0190/}}}
}