@article{oai:repository.dl.itc.u-tokyo.ac.jp:00034015, author = {Kanai, Kiyoshi}, issue = {3}, journal = {東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo}, month = {Dec}, note = {application/pdf}, pages = {283--286}, title = {An Explanation for the Ground Vibration caused by Periodically Exerted Force}, volume = {33}, year = {1955} }