Pieter Jan't Hoen Johannes A. La Poutré A Decommitment Strategy in a Competitive Multi-agent Transportation Setting. 56-72 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3048&spage=56 2003 conf/amec/2003 AMEC db/conf/amec/amec2003.html#HoenP03