Gordon Kindlmann.
  <b>Superquadric Tensor Glyphs</b>.
  In <i>Proceeding of The Joint Eurographics&mdash;IEEE TCVG Symposium on
  Visualization</i>, pages 147-154, May 2004.
  <A HREF="http://vis.cs.brown.edu/docs/pdf/bib/g/Kindlmann-2004-STG.pdf.html">(pdf)</A>
  <A HREF="http://vis.cs.brown.edu/results/bibtex/Kindlmann-2004-STG.bib">(bibtex:
  Kindlmann-2004-STG)</A>.<br />