@article{oai:repository.dl.itc.u-tokyo.ac.jp:00034126, author = {岸上, 冬彦}, issue = {1}, journal = {東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo}, month = {Apr}, note = {application/pdf}, pages = {59--62}, title = {Earth-vibrations on Soft Ground caused by Fallen Body}, volume = {30}, year = {1952} }