@article{oai:repository.dl.itc.u-tokyo.ac.jp:00033932,
 author = {Rikitake, Tsuneji and Yokoyama, Izumi and Uyeda, Seiya and Yukutake, Takesi and Nakagawa, Eiko},
 issue = {1},
 journal = {東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo},
 month = {May},
 note = {application/pdf},
 pages = {1--20},
 title = {The Anomalous Behaviour of Geomagnetic Variations of Short Period in Japan and Its Relation to the Subterranean Structure. The 7th report},
 volume = {36},
 year = {1958}
}