@article{oai:repository.dl.itc.u-tokyo.ac.jp:00015670,
 author = {保田, 柱二},
 issue = {1},
 journal = {震災豫防調査會報告},
 month = {Mar},
 pages = {261--310},
 title = {關東大地震ノ餘震觀測結果報告},
 volume = {100},
 year = {1925}
}