@Article{JGT08-Wyman,
  author = {Chris Wyman and Carsten Dachsbacher},
  title  = {{Improving Image-Space Caustics Via Variable-Sized Splatting }},
  year   = {2008},
  pages  = {1-17},
  journal = {{Journal of Graphics Tools}},
  volume = {13},
  number = {1}
}