Kormann, Thierry. <a href="http://www.inria.fr/koala/kuil/index.html"><cite>KUIL, the Koala User Interface Language.</cite></a> Sep 1999. Software package URL: <a href="http://www.inria.fr/koala/kuil/index.html">http://www.inria.fr/koala/kuil/index.html</a>