@TechReport{SCI:Wal2007b,
  author =    "I. Wald and H. Friedrich and C.D. Hansen",
  title =     "Interactive Isosurface Ray Tracing of Time-Varying
              Tetrahedral Volumes",
  number =    "UUSCI-2007-003",
  year =      "2007",
  institution = "University of Utah",
  type =      "{SCI} Institute Technical Report",
  keywords =  "vacet, scalar field methods, interactive rt
              distributed interactive ray tracing dirt, rtcenter,
              isosurfaces",
  url =       "http://www.sci.utah.edu/publications/SCITechReports/UUSCI-2007-003.pdf",
}