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  Technical Report TR-05-91, Center for Research in Computing
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  <A HREF="http://vis.cs.brown.edu/docs/pdf/bib/g/Marks-1993-CCC.pdf.html">(pdf)</A>
  <A HREF="http://vis.cs.brown.edu/results/bibtex/Marks-1993-CCC.bib">(bibtex:
  Marks-1993-CCC)</A>.<br />