@article{oai:repository.dl.itc.u-tokyo.ac.jp:00016203, author = {大森, 房吉}, journal = {震災豫防調査會報告}, month = {Mar}, pages = {1--20}, title = {第1編 感震機及ビ地震計(地震驗測法一斑)}, volume = {50}, year = {1905} }