@article{oai:repository.dl.itc.u-tokyo.ac.jp:00034257,
 author = {Rikitake, Tsuneji},
 issue = {1-4},
 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 = {17--21},
 title = {4. A Study on Regional Anomaly in the Earth's Magnetic Field},
 volume = {26},
 year = {1950}
}