@article{oai:repository.dl.itc.u-tokyo.ac.jp:00032341,
 author = {坪井, 忠二 and 実川, 顕 and 田島, 広一},
 issue = {6},
 journal = {地震研究所彙報別冊},
 month = {Mar},
 pages = {311--406},
 title = {Gravity Survey along the Lines of Precise Levels throughout Japan by Means of a Worden Gravimeter. : Part 7. Tohoku District},
 volume = {4},
 year = {1956}
}