David H. Laidlaw.
  <b>Loose, Artistic ``Textures'' for Visualization</b>.
  <i>IEEE Computer Graphics and Applications</i>, 21(2):6-9,
  March/April 2001.
  <A HREF="http://vis.cs.brown.edu/docs/pdf/g/Laidlaw-2001-LAT.pdf.html">(pdf)</A>
  <A HREF="http://vis.cs.brown.edu/results/bibtex/Laidlaw-2001-LAT.bib">(bibtex:
  Laidlaw-2001-LAT)</A>.<br />