@InProceedings{SCI:Wan2010b,
  author =    "Y. Wan and C.D. Hansen",
  title =     "Fast Volumetric Data Exploration with
              Importance-Based Accumulated Transparency
              Modulation",
  booktitle = "Proceedings of {IEEE/EG} International Symposium
              on Volume Graphics 2010",
  pages =     "61--68",
  year =      "2010",
  doi =       "10.2312/VG/VG10/061-068",
  url =       "http://www.sci.utah.edu/publications/Wan2010b/wan_vg2010_fast.pdf",
}