Michael E. J. Masson and Geoffrey R. Loftus.
  <b>Using confidence intervals for graphically based data
  interpretation</b>.
  <i>Canadian Journal of Experimental Psychology</i>, 57(3):203-220,
  2003.
  <A HREF="http://vis.cs.brown.edu/docs/pdf/bib/g/Masson-2003-UCI.pdf.html">(pdf)</A>
  <A HREF="http://vis.cs.brown.edu/results/bibtex/Masson-2003-UCI.bib">(bibtex:
  Masson-2003-UCI)</A>.<br />