@article{oai:ismrepo.ism.ac.jp:00032259,
 author = {二宮, 理憙 and Ninomiya, Satoki},
 issue = {2},
 journal = {統計数理研究所彙報},
 month = {Mar},
 pages = {119--128},
 title = {団体到着, 団体 service の queuing system について},
 volume = {10},
 year = {1963}
}