@Article{SCI:Zha2009a,
  author =    "F. Zhang and E.R. Hancock and C. Goodlett and G.
              Gerig",
  title =     "Probabilistic White Matter Fiber Tracking using,
              Particle Filtering and von Mises-Fisher Sampling",
  journal =   "Medical Image Analysis",
  volume =    "13",
  number =    "1",
  pages =     "5--18",
  year =      "2009",
  pmid =      "18602332",
  url =       "http://www.sci.utah.edu/publications/zhang09/Zhang_MIA2009.pdf",
}