@article{oai:repository.dl.itc.u-tokyo.ac.jp:00034991,
 author = {今村, 明恒},
 issue = {3},
 journal = {東京帝國大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, Tokyo Imperial University},
 month = {Apr},
 note = {application/pdf},
 pages = {489--494},
 title = {地震波によりて誘起せられたる土地の固有振動に就いて},
 volume = {7},
 year = {1930}
}