Christian Beaulieu.
  <b>The Basis of Anisotropic Water Diffusion in the Nervous
  System&mdash;A Technical Review</b>.
  <i>NMR in Biomedicine</i>, 15:435-455, 2002.
  <A HREF="http://vis.cs.brown.edu/docs/pdf/g/Beaulieu-2002-BAW.pdf.html">(pdf)</A>
  <A HREF="http://vis.cs.brown.edu/results/bibtex/Beaulieu-2002-BAW.bib">(bibtex:
  Beaulieu-2002-BAW)</A>.<br />