@TECHREPORT{HerzogReport2007,
  AUTHOR = {Herzog, Robert and Havran, Vlastimil and Kinuwaki, Shinichi and Myszkowski, Karol and Seidel, Hans-Peter},
  TITLE = {Global Illumination using Photon Ray Splatting},
  YEAR = {2007},
  TYPE = {Research Report},
  INSTITUTION = {MPI Informatik},
  NUMBER = {MPI-I-2007-4-007},
  PAGES = {66},
  ADDRESS = {Saarbruecken, Germany},
  MONTH = {May},
}