@Article{SCI:Liv96,
  author =    "Y. Livnat and H.W. Shen and C.R. Johnson",
  title =     "A Near Optimal Isosurface Extraction Algorithm
              Using the Span Space",
  journal =   "{IEEE} Transactions on Visual Computer Graphics",
  volume =    "2",
  number =    "1",
  pages =     "73--84",
  year =      "1996",
  keywords =  "scalar field methods, isosurface extraction,
              scientific visualization",
  url =       "http://www.sci.utah.edu/publications/yarden96/tvcg96.pdf",
}