@misc{oai:tsukuba.repo.nii.ac.jp:00011121,
 author = {Kaku, Tsubin and 郭, 資敏},
 month = {},
 note = {1999, 【要旨】},
 title = {Fragmentation processes in Plinian eruptions : constraints from tephra fall deposits},
 year = {2000}
}