@inproceedings{Purcell:2003:PMO,
 author = {Timothy J. Purcell and Craig Donner and Mike Cammarano and Henrik Wann Jensen and Pat Hanrahan},
 title = {Photon Mapping on Programmable Graphics Hardware},
 booktitle = {Proceedings of the ACM SIGGRAPH/EUROGRAPHICS Conference on Graphics Hardware},
 year = {2003},
 isbn = {1-58113-739-7},
 pages = {41--50},
 location = {San Diego, California},
 publisher = {Eurographics Association},
 }