@article{oai:repository.dl.itc.u-tokyo.ac.jp:00033918,
 author = {Kanai, Kiyoshi and Tanaka, Teiji},
 issue = {3},
 journal = {東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo},
 month = {Oct},
 note = {application/pdf},
 pages = {359--368},
 title = {Self-levelling Vibrograph},
 volume = {36},
 year = {1958}
}