@article{oai:tsukuba.repo.nii.ac.jp:02001634,
 author = {Yoshida, Takahiro and Er-rbib, Rim and 堤, 盛人 and TSUTSUMI, Morito},
 issue = {22},
 journal = {Sustainability},
 month = {Nov},
 title = {Which Country Epitomizes the World? A Study from the Perspective of Demographic Composition},
 volume = {11},
 year = {2019},
 yomi = {ツツミ, モリト}
}