@article{oai:repository.dl.itc.u-tokyo.ac.jp:00000265,
 author = {EWING, J. A.},
 journal = {Transactions of the Seismological Society of Japan},
 month = {},
 note = {application/pdf, Abstract},
 pages = {45--49},
 title = {ON A NEW SEISMOGRAPH FOR HORIZONTAL MOTION},
 volume = {2},
 year = {1880}
}