@article{oai:repository.dl.itc.u-tokyo.ac.jp:00034191, author = {Rikitake, Tsuneji}, issue = {3-4}, journal = {東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo}, month = {Mar}, note = {application/pdf}, pages = {219--262}, title = {18. Electromagnetic Induction within the Earth and Its Relation to the Electrical State of the Earth's Interior. Part I(2)}, volume = {28}, year = {1951} }