@article{oai:repository.dl.itc.u-tokyo.ac.jp:00000391,
 author = {Tsukuda, Tameshige},
 journal = {Journal of physics of the earth},
 month = {},
 note = {application/pdf},
 pages = {345--360},
 title = {Seismic ray focusing around the magma reservoir beneath the eastern part of Izu Peninsula, Honshu, Japan},
 volume = {39},
 year = {1991}
}