Ryan Cabeen, Mark Bastin, and David H. Laidlaw.
 <b>Atlas-based multi-direction tractography using tensor
  registration and orientation statistics </b>.
 In <em>Proceedings of the OHBM</em>, 2013.
  <a href="http://vis.cs.brown.edu/docs/pdf/g/Cabeen-2013-AMT.pdf.html">(pdf)</a>
  <a href="http://vis.cs.brown.edu/results/bibtex/Cabeen-2013-AMT.bib">(bibtex:
  Cabeen-2013-AMT)</a>.