@TechReport{SCI:Sch2010c,
  author =    "M. Schott and P. Grosset and T. Martin and V.
              Pegoraro and C.D. Hansen",
  title =     "Depth of Field Effects for Interactive Direct
              Volume Rendering",
  number =    "UUSCI-2010-005",
  year =      "2010",
  institution = "SCI Institute, University of Utah",
  type =      "SCI Technical Report",
  url =       "http://www.sci.utah.edu/publications/SCITechReports/UUSCI-2010-005.pdf",
}