On the combination of uncertain or imprecise pieces of information in rule-based systems--A discussion in the framework of possibility theory.

Didier Dubois Henri Prade On the combination of uncertain or imprecise pieces of information in rule-based systems--A discussion in the framework of possibility theory. 65-87 1988 2 Int. J. Approx. Reasoning 1 http://dx.doi.org/10.1016/0888-613X(88)90006-0 db/journals/ijar/ijar2.html#DuboisP88