Daniel Delahaye Stephane Puechmorel Air Traffic Controller Keyboard Optimization by Artificial Evolution. 177-188 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2936&spage=177 2003 conf/ae/2003 Artificial Evolution db/conf/ae/ae2003.html#DelahayeP03