Gennady Andrienko and Natalia Andrienko.
  <b>Data characterization schema for intelligent support in
  visual data analysis</b>.
  In <i>Lecture Notes in Computer Science</i>, pages 349-366.
  Springer-verlag, 1999.
  <A HREF="http://vis.cs.brown.edu/docs/pdf/bib/g/Andrienko-1999-DCS.pdf.html">(pdf)</A>
  <A HREF="http://vis.cs.brown.edu/results/bibtex/Andrienko-1999-DCS.bib">(bibtex:
  Andrienko-1999-DCS)</A>.<br />