M.H. Huber and Sharon Swartz.
  <b>Wings of springs: Structure, function and energetics of bat
  finger bones</b>.
  Unpublished
  <A HREF="http://vis.cs.brown.edu/results/bibtex/Huber-2004-WSS.bib">(bibtex:
  Huber-2004-WSS)</A>, 2004.<br />