Rui Da Silva Neves Eric Raufaste Polymorphism of Human Judgment under Uncertainty. 647-658 2001 conf/ecsqaru/2001 ECSQARU http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2143&spage=0647 db/conf/ecsqaru/ecsqaru2001.html#NevesR01