@article{oai:repository.dl.itc.u-tokyo.ac.jp:00034229, author = {Sato, Yasuo}, issue = {1-4}, journal = {東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo}, month = {Jun}, note = {application/pdf}, pages = {1--9}, title = {1. Boundary Conditions in the Problem of Generation of Elastic Waves}, volume = {27}, year = {1950} }