@article{oai:repository.dl.itc.u-tokyo.ac.jp:00019183,
 author = {岡田, 恒男},
 issue = {1},
 journal = {生産研究},
 month = {Jan},
 pages = {1--1},
 title = {巻頭言 : 年頭所感},
 volume = {43},
 year = {1991}
}