@article{oai:repository.dl.itc.u-tokyo.ac.jp:00034079, author = {西村, 源六郎 and 鈴木, 正治 and 古川, 英一 and 小滝, 富雄 and 高橋, 浩一}, issue = {4}, journal = {東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo}, month = {Dec}, note = {application/pdf}, pages = {317--334}, title = {30. A New-Designed Prospecting Apparatus}, volume = {31}, year = {1953} }