@article{oai:repository.dl.itc.u-tokyo.ac.jp:00034012, author = {Takahasi, Ryutaro}, 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 = {259--264}, title = {A Short Note on a Graphical Solution of the Spectral Response of the Ground}, volume = {33}, year = {1955} }