Jorik Blaas and Charl P. Botha and.
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  <i>IEEE Visualization</i>, 2005.
  <A HREF="http://vis.cs.brown.edu/docs/pdf/bib/g/Blaas-2005-FRF.pdf.html">(pdf)</A>
  <A HREF="http://vis.cs.brown.edu/results/bibtex/Blaas-2005-FRF.bib">(bibtex:
  Blaas-2005-FRF)</A>.<br />