@article{oai:repository.dl.itc.u-tokyo.ac.jp:00020400,
 author = {ISHIZUKA, Mitsuru},
 issue = {7},
 journal = {生産研究},
 month = {Jul},
 pages = {312--315},
 title = {研究速報 : An Extension of Dempster & Shafer's Theory to Fuzzy Set for Constructing Expert Systems},
 volume = {34},
 year = {1982}
}