NSF.
  <b>Review of Visualization of Multi-valued Scientific Data:
  Applying Ideas from Art and Perceptual Psychology</b>.
  Unpublished
  <A HREF="http://vis.cs.brown.edu/docs/pdf/bib/g/NSF-2000-VMS.pdf.html">(pdf)</A>
  <A HREF="http://vis.cs.brown.edu/results/bibtex/NSF-2000-VMS.bib">(bibtex:
  NSF-2000-VMS)</A>, 2000.<br />