Hong Ding Madan M. Gupta Competitive and cooperative adaptive reasoning with fuzzy causal knowledge. 191-206 2000 9 Journal of Intelligent and Fuzzy Systems 3-4 http://iospress.metapress.com/openurl.asp?genre=article&issn=1064-1246&volume=10&issue=3&spage=191 db/journals/jifs/jifs9.html#DingG00