@article{oai:repository.dl.itc.u-tokyo.ac.jp:00000303,
 author = {[著者名なし]},
 journal = {Transactions of the Seismological Society of Japan},
 month = {},
 note = {application/pdf},
 pages = {36--39},
 title = {REPORT OF THE COMMITTEE ON A SYSTEM OF EARTHQUAKE OBSERVATIONS},
 volume = {6},
 year = {1883}
}