@article{oai:repository.dl.itc.u-tokyo.ac.jp:00018209,
 author = {石井, 勝},
 issue = {10},
 journal = {生産研究},
 month = {Oct},
 pages = {465--472},
 title = {生研公開講演 : 雷},
 volume = {49},
 year = {1997}
}