@article{oai:repository.dl.itc.u-tokyo.ac.jp:00033031,
 author = {Tsujiura, Masaru},
 issue = {1},
 journal = {東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo},
 month = {Aug},
 note = {application/pdf},
 pages = {1--24},
 title = {Activity Mode of the 1980 Earthquake Swarm Off the East Coast of the Izu Peninsula},
 volume = {56},
 year = {1981}
}