@article{oai:repository.dl.itc.u-tokyo.ac.jp:00033986,
 author = {Kawasumi, Hirosi},
 issue = {1},
 journal = {東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo},
 month = {Jun},
 note = {application/pdf},
 pages = {1--8},
 title = {Notes on the Theory of Vibration Analyser},
 volume = {34},
 year = {1956}
}