@article{oai:repository.dl.itc.u-tokyo.ac.jp:00032859, author = {南雲, 昭三郎 and 大内, 徹 and 笠原, 順三 and 是澤, 定之}, issue = {3}, journal = {東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo}, month = {Feb}, note = {application/pdf}, pages = {415--427}, title = {15 Degree Shadow Zone of the P-wave Travel-times in the Western Northwest Pacific Basin Observed by an Ocean-bottom Seismometer Long Range Array}, volume = {61}, year = {1987} }