@article{oai:repository.dl.itc.u-tokyo.ac.jp:00033140,
 author = {島田, 誠一},
 issue = {3},
 journal = {東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo},
 month = {Dec},
 note = {application/pdf},
 pages = {815--822},
 title = {1975～1978年の伊豆半島における地震活動の半日潮周期変化および日周変化},
 volume = {53},
 year = {1978}
}