@article{oai:repository.dl.itc.u-tokyo.ac.jp:00033960,
 author = {Yokoyama, Izumi},
 issue = {1},
 journal = {東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo},
 month = {Jul},
 note = {application/pdf},
 pages = {75--97},
 title = {Energetics in Active Volcanoes. 2nd Paper},
 volume = {35},
 year = {1957}
}