@article{oai:ismrepo.ism.ac.jp:00033069,
 author = {増山, 元三郎 and Masuyama, Motosaburo},
 issue = {12},
 journal = {統計数理研究所講究録},
 month = {Mar},
 pages = {454--459},
 title = {全数調査に不応答群のある場合の抽出法},
 volume = {4},
 year = {1949}
}