David H. Laidlaw.
  <i><b>Geometric Model Extraction from Magnetic Resonance
  Volume Data</b></i>.
  PhD thesis, California Institute of Technology, 1995.
  <A HREF="http://vis.cs.brown.edu/docs/pdf/g/Laidlaw-1995-GME.pdf.html">(pdf)</A>
  <A HREF="http://vis.cs.brown.edu/results/bibtex/Laidlaw-1995-GME.bib">(bibtex:
  Laidlaw-1995-GME)</A>.<br />