@Article{SCI:Fle2007a,
  author =    "P.T. Fletcher and S. Joshi",
  title =     "Riemannian Geometry for the Statistical Analysis
              of Diffusion Tensor Data",
  journal =   "Signal Processing",
  volume =    "87",
  number =    "2",
  pages =     "250--262",
  year =      "2007",
  month =     "February",
  keywords =  "diffusion tensor,",
  url =       "http://www.sci.utah.edu/publications/fletcher07/FletcherTensorStatsSP.pdf",
}