Geoffrey J.M. Parker, Hamied A. Haroon, and Claudia A.M. Wheeler-Kingshott.
  <b>A Framework for a Streamline-Based Probabilistic Index of
  Connectivity (PICo) Using a Structural Interpretation of MRI Diffusion
  Measurements</b>.
  <i>JOURNAL OF MAGNETIC RESONANCE IMAGING</i>, 18:242-254, 2003.
  <A HREF="http://vis.cs.brown.edu/docs/pdf/bib/g/Parker-2003-FSP.pdf.html">(pdf)</A>
  <A HREF="http://vis.cs.brown.edu/results/bibtex/Parker-2003-FSP.bib">(bibtex:
  Parker-2003-FSP)</A>.<br />