@Unpublished{K-theory/0990,
  author = 	 {{A. Jon Berrick, Max Karoubi, and Paul Arne Østvær}},
  title = 	 {{Periodicity of hermitian K-groups}},
  note = 	 {{Preprint, January 10, 2011, K-theory Preprint Archives, http://www.math.uiuc.edu/K-theory/0990/}}}
}