@article{oai:waseda.repo.nii.ac.jp:00011702,
 author = {Suzuki, Tatsunori and 鈴木, 辰紀},
 journal = {早稲田商学=The Waseda commercial review},
 month = {May},
 pages = {145--166},
 title = {保険料不払と保険期間},
 volume = {152号},
 year = {1961}
}