@article{oai:repository.dl.itc.u-tokyo.ac.jp:00033117, author = {安藤, 誠一 and 岡田, 義光 and 安芸, 敬一 and 大工原, 保 and 鈴木, 喜吉 and 原, 智美}, issue = {1}, journal = {東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo}, month = {Nov}, note = {application/pdf}, pages = {135--146}, title = {固有周期の安定な坑井用小型長周期地震計・傾斜計の開発}, volume = {54}, year = {1979} }