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  <A HREF="http://vis.cs.brown.edu/docs/pdf/bib/g/Ulmer-1997-TMM.pdf.html">(pdf)</A>
  <A HREF="http://vis.cs.brown.edu/results/bibtex/Ulmer-1997-TMM.bib">(bibtex:
  Ulmer-1997-TMM)</A>.<br />