Simon Goss Clinton Heinze Michael Papasimeon Adrian R. Pearce Leon Sterling Towards Reuse in Agent Oriented Information Systems: The Importance of Being Purposive. 110-125 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3030&spage=110 2003 conf/aois/2003 AOIS db/conf/aois/aois2003.html#GossHPPS03