@article{oai:repository.dl.itc.u-tokyo.ac.jp:00033902, author = {Matuzawa, Takeo}, issue = {1}, journal = {東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo}, month = {May}, note = {application/pdf}, pages = {123--154}, title = {On the Crustal Structure in Nouth-East Japan by Explosion Seismic Observations}, volume = {37}, year = {1959} }