@article{oai:repository.dl.itc.u-tokyo.ac.jp:00034532, author = {Sezawa, Katsutada and Kanai, Kiyoshi}, issue = {3}, journal = {東京帝國大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, Tokyo Imperial University}, month = {Sep}, note = {application/pdf}, pages = {491--503}, title = {37. Damping of Periodic Visco-Elastic Waves with Increase in Focal Distance}, volume = {16}, year = {1938} }