Geoffrey R. Loftus and Michael E. J. Masson.
  <b>Using confidence intervals in within-subject designs</b>.
  <i>Psychonomic Bulletin and Review</i>, 1:476-490, 1994.
  <A HREF="http://vis.cs.brown.edu/docs/pdf/bib/g/Loftus-1994-UCI.pdf.html">(pdf)</A>
  <A HREF="http://vis.cs.brown.edu/results/bibtex/Loftus-1994-UCI.bib">(bibtex:
  Loftus-1994-UCI)</A>.<br />