@article{oai:repository.dl.itc.u-tokyo.ac.jp:00033381,
 author = {Kubotera, Akira and Tajima, Hirokazu and Sumitomo, Norihiko and Doi, Hikaru and Izutuya, Sadakatu},
 issue = {2},
 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 = {215--255},
 title = {13. Gravity Surveys on Aso and Kuju Volcanic Region, Kyushu District, Japan},
 volume = {47},
 year = {1969}
}