@Unpublished{K-theory/0893,
  author = 	 {{Mark Blunk}},
  title = 	 {{del Pezzo surfaces of degree 6 over an arbitrary field}},
  note = 	 {{Preprint, May 5, 2008, K-theory Preprint Archives, http://www.math.uiuc.edu/K-theory/0893/}}}
}