Colin Ware, Don House, David H. Laidlaw, and Jeffrey Proehl.
  <b>Nugget for NSF: ITR Collaborative: Perceptual
  Optimization for Data Visualization</b>.
  Submitted to NSF, January 2004.
  <A HREF="http://vis.cs.brown.edu/docs/pdf/bib/g/Ware-2004-NUG.pdf.html">(pdf)</A>
  <A HREF="http://vis.cs.brown.edu/results/bibtex/Ware-2004-NUG.bib">(bibtex:
  Ware-2004-NUG)</A>.<br />