@Article{EG97,
  author =       {Westermann, R. and Ertl, T.},
  title =        {{A Multiscale Approach to Integrated Volume Segmentation and Rendering}},
  journal =      {Computers Graphics Forum (EUROGRAPHICS '97)},
  organization = "Eurographics Association",
  year =         1997,
  volume =       16,
  number =       3,
  pages =        {96-107}
}