Carlo Pierpaoli, Alan Barnett, Sinisa Pajevic, Robert Chen, LaRoy Penix, Anette
  Virta, and Peter Basser.
  <b>Water Diffusion Changes in Wallerian Degeneration and Their
  Dependence on White Matter Architecture</b>.
  <i>NeuroImage</i>, 13:1174-1185, 2001.
  <A HREF="http://vis.cs.brown.edu/docs/pdf/bib/g/Pierpaoli-2001-WDC.pdf.html">(pdf)</A>
  <A HREF="http://vis.cs.brown.edu/results/bibtex/Pierpaoli-2001-WDC.bib">(bibtex:
  Pierpaoli-2001-WDC)</A>.<br />