@Article{SCI:Mar2002a,
  author =    "W. Martin and E. Reinhard and P. Shirly and S.G.
              Parker and W. Thompson",
  title =     "Temporally Coherent Interactive Ray Tracing",
  journal =   "Journal of Graphics Tools",
  volume =    "7",
  number =    "2",
  pages =     "41--48",
  year =      "2002",
  keywords =  "rtrt real-time ray tracing, interactive rt
              distributed interactive ray tracing dirt",
  url =       "http://www.sci.utah.edu/publications/martin02/Temporally_Coherent_Inter_Raytracing.pdf",
}