Tracy Staedter.
  <b>New Tech Lets You Draw in the Air</b>.
  Discovery News, October 2007.
  <A HREF="http://vis.cs.brown.edu/docs/pdf/g/Staedter-2007-NTL.pdf.html">(pdf)</A>
  <A HREF="http://vis.cs.brown.edu/results/bibtex/Staedter-2007-NTL.bib">(bibtex:
  Staedter-2007-NTL)</A>.<br />