S. K. Card and J. Mackinlay.
  <b>The Structure of the Information Visualization Design Space</b>.
  In <i>Proceedings of IEEE Symposium on Information Visualization</i>,
  pages 92-99, 1997.
  <A HREF="http://vis.cs.brown.edu/docs/pdf/bib/g/Card-1997-SIV.pdf.html">(pdf)</A>
  <A HREF="http://vis.cs.brown.edu/results/bibtex/Card-1997-SIV.bib">(bibtex:
  Card-1997-SIV)</A>.<br />