@article{oai:repository.dl.itc.u-tokyo.ac.jp:00033243,
 author = {宇佐美, 龍夫},
 issue = {2},
 journal = {東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo},
 month = {Jan},
 note = {application/pdf},
 pages = {153--169},
 title = {安政元年南海地震の余震 : 歴史的地震の余震の減り方},
 volume = {50},
 year = {1976}
}