@TechReport{SCI:Ben2007a,
    author =    "C. Benthin and S. Boulos and D. Lacewell and I. Wald",
    title =     "Packet-based Ray Tracing of Catmull-Clark Subdivision Surfaces",
    number =    "UUSCI-2007-011",
    year =      "2007",
    institution = "University of Utah",
    type =      "{SCI} Institute Technical Report",
    keywords =  "interactive rt distributed interactive ray tracing dirt, rtcenter",
    URL =       "http://www.sci.utah.edu/publications/SCITechReports/UUSCI-2007-011.pdf",
}