@article{oai:repository.dl.itc.u-tokyo.ac.jp:00018055,
 author = {坂内, 正夫},
 issue = {1},
 journal = {生産研究},
 month = {Jan},
 pages = {1--3},
 title = {巻頭言 : 年頭所感},
 volume = {51},
 year = {1999}
}