A Belief-Function Logic
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\begin{bibtex} @inproceedings{DBLP:conf/aaai/Saffiotti92, title={A Belief-Function Logic}, pages={642-647}, year={1992}, booktitle={AAAI}, url={http://www.informatik.uni-trier.de/~ley/db/conf/aaai/aaai92.html#Saffiotti92}, author={Alessandro Saffiotti} }\end{bibtex}
