@article{oai:repository.dl.itc.u-tokyo.ac.jp:00033886,
 author = {Rikitake, Tsuneji},
 issue = {2},
 journal = {東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo},
 month = {Aug},
 note = {application/pdf},
 pages = {245--264},
 title = {Forced Oscillations of the Earth's Dynamo},
 volume = {37},
 year = {1959}
}