@article{oai:ipss.repo.nii.ac.jp:00000313,
 author = {別府, 志海 and BEPPU, Motomi and SASAI, Tsukasa},
 issue = {3},
 journal = {人口問題研究, Journal of Population Problems},
 month = {Sep},
 note = {統計},
 pages = {274--283},
 title = {主要国人口の年齢構造に関する主要指標：最新資料},
 volume = {77},
 year = {2021},
 yomi = {ベップ, モトミ}
}