@article{oai:repository.dl.itc.u-tokyo.ac.jp:00034799,
 author = {Tsuboi, Chuji},
 issue = {3},
 journal = {東京帝國大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, Tokyo Imperial University},
 month = {Sep},
 note = {application/pdf},
 pages = {426--445},
 title = {Transient Motions of a Pendulum Caused by an External Vibration with Sudden or Gradual Commencement},
 volume = {12},
 year = {1934}
}