@article{oai:ismrepo.ism.ac.jp:00033009,
 author = {石田, 望 and Isida, Nozomu},
 issue = {23-24},
 journal = {統計数理研究所講究録},
 month = {Mar},
 pages = {397--405},
 title = {層化標本法ノ効用ノ限界ニツイテ},
 volume = {3},
 year = {1948}
}