@InProceedings{roettger-vissym03,
  author = {Roettger, S. and Guthe, S. and Weiskopf, D. and Ertl, Th.},
  title  = {{Smart Hardware-Accelerated Volume Rendering}},
  year   = {2003},
  pages  = {231-238},
  booktitle = {{Proceedings of EG/IEEE TCVG Symposium on Visualization VisSym '03}}
}