Margaret-Anne D. Storey, Kenny Wong, and Haussi A. Muller.
  <b>Rigi: A Visualization Environment for Reverse Engineering</b>.
  In <i>Unknown</i>, 1997.
  <A HREF="http://vis.cs.brown.edu/docs/ps/g/Storey-1997-RVE.ps.html">(ps)</A>
  <A HREF="http://vis.cs.brown.edu/results/bibtex/Storey-1997-RVE.bib">(bibtex:
  Storey-1997-RVE)</A>.<br />