@article{oai:repository.dl.itc.u-tokyo.ac.jp:00000268,
 author = {GRAY, THOMAS},
 journal = {Transactions of the Seismological Society of Japan},
 month = {},
 note = {application/pdf},
 pages = {1--11},
 title = {ON STEADY POINTS FOR EARTHQUAKE MEASUREMENTS},
 volume = {3},
 year = {1881}
}