Andreas Sigfridsson.
  <b>Tensor Field Visualisation using Adaptive Filtering of Noise
  Fields combined with Glyph Rendering</b>.
  <i>IEEE Visualization</i>, 2002.
  <A HREF="http://vis.cs.brown.edu/docs/pdf/g/Sigfridsson-2002-TFV.pdf.html">(pdf)</A>
  <A HREF="http://vis.cs.brown.edu/results/bibtex/Sigfridsson-2002-TFV.bib">(bibtex: Sigfridsson-2002-TFV)</A>.<br />