@article{oai:repository.dl.itc.u-tokyo.ac.jp:00040978,
 author = {Imamura, A.},
 issue = {3},
 journal = {Bulletin of the Imperial Earthquake Investigation Committee},
 month = {Jul},
 note = {application/pdf},
 pages = {158--160},
 title = {On a Method of Suppressing Air Tremors Occurring in Milne H.P. Seismograms},
 volume = {1},
 year = {1907}
}