Martyn Fletcher Duncan C. McFarlane Alan Thorne Dennis Jarvis Andrew Lucas Evaluating a Holonic Packing Cell. 246-257 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2744&spage=246 2003 conf/holomas/2003 HoloMAS db/conf/holomas/holomas2003.html#FletcherMTJL03