@InProceedings{SCI:And2007b,
  author =    "E.W. Anderson and S.P. Callahan and C.E.
              Scheidegger and J.M. Schriener and C.T. Silva",
  title =     "Hardware-Assisted Point-Based Volume Rendering of
              Tetrahedral Meshes",
  booktitle = "Proceedings of SIBGRAPI 2007",
  pages =     "163--170",
  year =      "2007",
  keywords =  "volume rendering",
  url =       "http://www.sci.utah.edu/publications/anderson07/pbvr.pdf",
}