@article{oai:repository.dl.itc.u-tokyo.ac.jp:00038586,
 author = {Omori, F.},
 journal = {Publications of the Earthquake Investigation Committee in foreign languages},
 month = {May},
 note = {application/pdf},
 pages = {73--75},
 title = {VII. Durations of the 1st and the 2nd Preliminary Tremors(Horizontal Pendulum Observations of Earthquakes at Hitotsubashi (Tokyo), 1900)},
 volume = {13},
 year = {1903}
}