@misc{Hamlaoui:2001:CS,
  optpostscript = {},
  www = {http://nehe.gamedev.net/data/lessons/lesson.asp?lesson=37},
  howpublished = {Online article at GameDev.net},
  optdoi = {},
  optnote = {},
  author = {Sami Hamlaoui},
  optkey = {},
  optannote = {},
  url = {http://www.gamedev.net/reference/programming/features/celshading/},
  localfile = {papers/Hamlaoui.2001.CS.pdf},
  title = {{C}el-{S}hading},
  optkeywords = {},
  optciteseer = {},
  year = {2001},
}