@article{oai:repository.dl.itc.u-tokyo.ac.jp:00033090,
 author = {岡田, 義光 and 平田, 安広 and 高橋, 辰利},
 issue = {1},
 journal = {東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo},
 month = {Aug},
 note = {application/pdf},
 pages = {225--240},
 title = {永年変化観測用超低速記録計の開発},
 volume = {55},
 year = {1980}
}