@article{oai:ismrepo.ism.ac.jp:00032269,
 author = {青山, 博次郎 and Aoyama, Hirojiro},
 issue = {2},
 journal = {統計数理研究所彙報},
 month = {Mar},
 pages = {77--104},
 title = {日本の企業におけるOR活動の実態調査},
 volume = {11},
 year = {1964}
}