@article{oai:repository.dl.itc.u-tokyo.ac.jp:00033969, author = {Rikitake, Tsuneji}, issue = {4}, journal = {東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo}, month = {Jan}, note = {application/pdf}, pages = {283--289}, title = {Stability of the Earth's Dynamo}, volume = {34}, year = {1957} }