@article{oai:repository.dl.itc.u-tokyo.ac.jp:00034858, author = {Tamaru, Takuro}, issue = {2}, journal = {東京帝國大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, Tokyo Imperial University}, month = {Jun}, note = {application/pdf}, pages = {362--381}, title = {The Construction and Study of an Acceleration Seismograph}, volume = {11}, year = {1933} }