@article{oai:repository.dl.itc.u-tokyo.ac.jp:00034509, author = {Sezawa, Katsutada and Kanai, Kiyoshi}, issue = {1}, journal = {東京帝國大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, Tokyo Imperial University}, month = {Mar}, note = {application/pdf}, pages = {9--26}, title = {2. Damping of Periodic Visco-Elastic Waves with Increase in Focal Distance.II}, volume = {17}, year = {1939} }