@article{oai:repository.dl.itc.u-tokyo.ac.jp:00016376,
 author = {今村, 明恒 and 大森, 房吉},
 journal = {震災豫防調査會報告},
 month = {Jul},
 note = {付録８頁},
 pages = {31--43},
 title = {地震動傳播ノ速度(參照第5)},
 volume = {21},
 year = {1898}
}