@TechReport{SCI:She94b,
  author =    "H.W. Shen and C.R. Johnson",
  title =     "Semi-automatic image segmentation: A bimodel
              thresholding approach",
  number =    "UUCS-94-019",
  year =      "1994",
  institution = "University of Utah",
  type =      "School of Computing Technical Report",
  keywords =  "ip image processing signal processing,
              segmentation, imaging",
  url =       "http://www.sci.utah.edu/publications/shen94/shen95_1.ps",
}