@article{oai:repository.dl.itc.u-tokyo.ac.jp:00032805,
 author = {井田, 喜明 and 長田, 昇 and 沢田, 宗久 and 小山, 悦郎 and 鍵山, 恒臣},
 issue = {2},
 journal = {東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo},
 month = {Sep},
 note = {application/pdf},
 pages = {325--345},
 title = {草津白根山における常設地震観測と1989年1月6日の小噴火},
 volume = {64},
 year = {1989}
}