@article{oai:ismrepo.ism.ac.jp:00032962,
 author = {伊藤, 鄭爾 and Ito, Teiji},
 issue = {19-20},
 journal = {統計数理研究所講究録},
 month = {Jan},
 pages = {367--373},
 title = {建築物の耐用年限},
 volume = {3},
 year = {1948}
}