@article{oai:repository.dl.itc.u-tokyo.ac.jp:00034083, author = {横山, 泉}, issue = {3}, journal = {東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo}, month = {Sep}, note = {application/pdf}, pages = {211--217}, title = {18. A New Method for Regulating Electric Currents and its Application to Measurements of Geomagnetic Field}, volume = {31}, year = {1953} }