@article{oai:repository.dl.itc.u-tokyo.ac.jp:00034250, author = {Minakami, Takeshi}, issue = {1-4}, journal = {東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo}, month = {Jun}, note = {application/pdf}, pages = {123--128}, title = {22. Recent Activities of Volcano Usu (III) : Earthquakes at the Stage of Paroxysmal Eruption}, volume = {27}, year = {1950} }