@article{oai:repository.dl.itc.u-tokyo.ac.jp:00037984,
 author = {Omori, F.},
 issue = {3},
 journal = {The journal of the College of Science, Imperial University of Tokyo, Japan = 東京帝國大學紀要. 理科},
 month = {},
 note = {application/pdf},
 pages = {121--145},
 title = {Horizontal Pendulums for the Mechanical Registration of Seismic and Other Earth Movements},
 volume = {11},
 year = {1899}
}