Joseph LaViola, Prabhat, Andrew Forsberg, David H. Laidlaw, and Andries van
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  In <i>Interactive Visualization: A State-of-the-Art Survey</i>.
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  <A HREF="http://vis.cs.brown.edu/docs/pdf/bib/g/LaViola-2007-VRI.pdf.html">(pdf)</A>
  <A HREF="http://vis.cs.brown.edu/docs/doc/bib/g/LaViola-2007-VRI.doc.html">(doc)</A>
  <A HREF="http://vis.cs.brown.edu/results/bibtex/LaViola-2007-VRI.bib">(bibtex:
  LaViola-2007-VRI)</A>.<br />