@Unpublished{K-theory/0428,
  author = 	 {{Tom Farrell, Lowell Jones, and Wolfgang Lueck}},
  title = 	 {{A Caveat on the Isomorphism Conjecture in L-theory}},
  note = 	 {{Preprint, June 27, 2000, K-theory Preprint Archives, http://www.math.uiuc.edu/K-theory/0428/}}}
}