@INPROCEEDINGS{Brabec2002:HemiOmni,
  AUTHOR = 	{Brabec, Stefan and Annen, Thomas and Seidel, Hans-Peter},
  EDITOR = 	{Vince, John and Earnshaw, Rae},
  TITLE = 	{Shadow Mapping for Hemispherical and Omnidirectional Light Sources},
  BOOKTITLE = 	{Advances in Modelling, Animation and Rendering (Proceedings Computer Graphics International 2002)},
  PUBLISHER = 	{Springer},
  YEAR = 	{2002},
  PAGES = 	{397--408},
  ADDRESS = 	{Bradford, UK},
  ISBN = 	{1-85233-654-4},
}