@TechReport{SCI:Kno2007d,
  author =    "A. Knoll and Y. Hijazi and A. Kensler and M.
              Schott and C.D. Hansen and H. Hagen",
  title =     "Fast and Robust Ray Tracing of General Implicits
              on the GPU",
  number =    "UUSCI-2007-014",
  year =      "2007",
  institution = "University of Utah",
  type =      "{SCI} Institute Technical Report",
  keywords =  "ray tracing, GPU",
  url =       "http://www.sci.utah.edu/publications/SCITechReports/UUSCI-2007-014.pdf",
}