@article{oai:repository.dl.itc.u-tokyo.ac.jp:00038644,
 author = {Omori, F.},
 journal = {Publications of the Earthquake Investigation Committee in foreign languages},
 month = {Feb},
 note = {application/pdf},
 pages = {i--iii},
 title = {PREFACE(Results of the Horizontal Pendulum Observations of Earthquakes, July 1898 to Dec. 1899, Tokyo)},
 volume = {5},
 year = {1901}
}