@InProceedings{ward92irradiance,
  author =   {Gregory J. Ward and Paul S. Heckbert},
  title =    {Irradiance Gradients},
  booktitle =  {Eurographics Workshop on Rendering},
  year =     {1992},
}

@inproceedings{ward88ray,
 author    = {Gregory J. Ward and Francis M. Rubinstein and Robert D. Clear},
 title     = {A ray tracing solution for diffuse interreflection},
 booktitle = {Proceedings of SIGGRAPH~'88},
 year      = {1988},
 isbn      = {0-89791-275-6},
 pages     = {85--92},
 doi       = {http://doi.acm.org/10.1145/54852.378490},
 OPTpublisher = {ACM Press},
 }

@article{krivanek05radiance,
  author =   {Jaroslav K\v{r}iv\'anek and Pascal Gautron and Sumanta Pattanaik and Kadi Bouatouch},
  title =    {Radiance Caching for Efficient Global Illumination Computation},
  journal =  {Transactions on Visualization and Computer Graphics (accepted for publication)},
  year =     {2005},
  note =     {Also available as Technical Report \#1623, IRISA, http://graphics.cs.ucf.edu/RCache/index.php}
}

@inproceedings{arvo94irradiance,
 author = {James Arvo},
 title = {The irradiance Jacobian for partially occluded polyhedral sources},
 booktitle = {Proceedings of SIGGRAPH~'94},
 year = {1994},
 isbn = {0-89791-667-0},
 OPTpages = {343--350},
 doi = {http://doi.acm.org/10.1145/192161.192250},
 OPTpublisher = {ACM Press},
 }

@inproceedings{annen04spherical,
 author    = {Thomas Annen and Jan Kautz and Fredo Durand and Hans-Peter Seidel},
 title     = {Spherical Harmonic Gradients for Mid-Range Illumination},
 booktitle = {Proceedings of the Eurographics Symposium on Rendering 2004},
 year      = {2004},
 OPTpages     = {331--336},
 OPTpublisher = {Eurographics Association},
 }

@InProceedings{holzschuch95accurate,
  author =  "Nicolas Holzschuch and Fran\c{c}ois Sillion",
  title =   "Accurate Computation of the Radiosity Gradient with Constant and Linear Emitters",
  booktitle =   "Sixth Eurographics Workshop on Rendering",
  month =   "June",
  year =    "1995",
  OPTnote =    "Dublin, Ireland",
  OPTurl =     "http://www-imagis.imag.fr/Publications/1995/HS95"
}

@inproceedings{gautron04novel,
 author    = {Pascal Gautron and Jaroslav K\v{r}iv\'anek and Sumanta N. Pattanaik and Kadi Bouatouch},
 title     = {A~Novel Hemispherical Basis for Accurate and Efficient Rendering},
 booktitle = {Eurographics Symposium on Rendering},
 year      = {2004},
 OPTmonth     = {June},
 OPTpages        = {321--330},
 OPTeditor       = {Wann Jensen, Henrik and Keller, Alexander},
 OPTpublisher    = {Eurographics Association},
 OPTorganization = {Eurographics Association},
 OPTaddress      = {Norrk{\"o}ping, Sweeden},
 OPTisbn         = {3-905673-12-6},
}

@inproceedings{ward92measuring,
 author = {Gregory J. Ward},
 title = {Measuring and modeling anisotropic reflection},
 booktitle = {Proceedings of SIGGRAPH~'92},
 year = {1992},
 isbn = {0-89791-479-1},
 pages = {265--272},
 doi = {http://doi.acm.org/10.1145/133994.134078},
 publisher = {ACM Press},
}

@inproceedings{schroder95spherical,
 author = {Peter Schr\"{o}der and Wim Sweldens},
 title = {Spherical wavelets: efficiently representing functions on the sphere},
 booktitle = {Proceedings of SIGGRAPH},
 year = {1995},
 isbn = {0-89791-701-4},
 pages = {161--172},
 doi = {http://doi.acm.org/10.1145/218380.218439},
 publisher = {ACM Press},
 }

@inproceedings{lafortune97nonlinear,
 author = {Eric P. F. Lafortune and Sing-Choong Foo and Kenneth E. Torrance and Donald P. Greenberg},
 title = {Non-linear approximation of reflectance functions},
 booktitle = {Proceedings of SIGGRAPH '97},
 year = {1997},
% isbn = {0-89791-896-7},
 pages = {117--126},
% doi = {http://doi.acm.org/10.1145/258734.258801},
% publisher = {ACM Press/Addison-Wesley Publishing Co.},
 }

 @misc{westin00lafortune,
  author       = {Stephen H. Westin},
  title        = {Lafortune {BRDF} for {R}ender{M}an},
  howpublished = {http://www.graphics.cornell.edu/~westin/lafortune/lafortune.html},
  year         = {2000}
}