@article{oai:repository.dl.itc.u-tokyo.ac.jp:00033295, author = {Nagumo, Shozaburo and Hasegawa, Shuji and Koresawa, Sadayuki and Kobayashi, Heihachiro}, issue = {5}, journal = {東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo}, month = {Dec}, note = {application/pdf}, pages = {793--809}, title = {43. Ocean-bottom Seismographic Observation off Sanriku-Aftershock Activity of the 1968 Tokachi-Oki Earthquake and Its Relation to the Ocean-Continent Boundary Fault}, volume = {48}, year = {1970} }