@Article{SCI:Gri2008a,
  author =    "C. Gribble and C. Brownlee and S.G. Parker",
  title =     "Practical Global Illumination for Interactive
              Particle Visualization",
  journal =   "Computers and Graphics",
  volume =    "32",
  number =    "1",
  pages =     "14--24",
  year =      "2008",
  month =     "February",
  keywords =  "Interactive particle visualization, Global
              illumination, Ray tracing",
  url =       "http://www.sci.utah.edu/publications/Gri2008a/Gribble_CG2008.pdf",
}