@article{DWFBGTVCG06,
 author = {Michael Donikian and Bruce Walter and Sebastian Fernandez and Kavita Bala and Donald P. Greenberg},
 title = {Accurate Direct Illumination Using Iterative Adaptive Sampling},
 journal = {IEEE Transactions on Visualization and Computer Graphics},
 volume = {12},
 number = {3},
 year = {2006},
 issn = {1077-2626},
 pages = {353--364},
 doi = {http://dx.doi.org/10.1109/TVCG.2006.41},
 publisher = {IEEE Educational Activities Department},
 address = {Piscataway, NJ, USA},
 }