@inproceedings{Ng:2003:AFS,
  title = {All-Frequncy Shadows Using Non-linear Wavelet Lighting Approximation},
  booktitle = {ACM SIGGRAPH},
  author = {Ren Ng and Ravi Ramamoorthi and Pat Hanrahan},
  number = 3,
  month = jul,
  volume = 22,
  year = 2003,
  journal = {ACM Trans. Graph.},
  url = {/Users/job/Media/GraphicsWebSite/site_root/papers/Ng-AFS-2003-07/},
}