@article{oai:repository.dl.itc.u-tokyo.ac.jp:00034548, author = {Nagata, Takesi}, issue = {2}, journal = {東京帝國大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, Tokyo Imperial University}, month = {Jun}, note = {application/pdf}, pages = {288--299}, title = {25. Magnetic Anomalies around Volcanic Craters}, volume = {16}, year = {1938} }