R. Beach and M. Stone.
  <b>Graphical Style. Towards High Quality Illustrations</b>.
  In <i>Proceedings of SIGGRAPH</i>, volume&nbsp;17, pages 127-135. ACM
  Press, 1983.
  <A HREF="http://vis.cs.brown.edu/docs/pdf/bib/g/Beach-1983-GST.pdf.html">(pdf)</A>
  <A HREF="http://vis.cs.brown.edu/results/bibtex/Beach-1983-GST.bib">(bibtex:
  Beach-1983-GST)</A>.<br />