Ghania Aissaoui David Genest Stéphane Loiseau Cognitive Map of Conceptual Graphs: A Graphical Model to Help for Decision. 337-350 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2746&spage=337 2003 conf/iccs/2003 ICCS db/conf/iccs/iccs2003.html#AissaouiGL03