@article{oai:tsukuba.repo.nii.ac.jp:00047617,
 author = {Tamaribuchi, Koji and 八木, 勇治 and YAGI, Yuji and Enescu, Bogdan and Hirano, Shiro},
 journal = {Earth, planets and space},
 month = {May},
 title = {Characteristics of foreshock activity inferred from the JMA earthquake catalog},
 volume = {70},
 year = {2018},
 yomi = {ヤギ, ユウジ}
}