Keitaro Yamada, Keiji Takemura, Michinobu Kuwae, Masanobu Yamamoto, Tohru Danhara(2017) Revised ages of late Holocene tephras in Beppu Bay, central Kyushu, southwest Japan, Quaternary International, Volume 452, pp. 33-42
Keitaro Yamada, Keiji Takemura, Michinobu Kuwae, Masanobu Yamamoto, Tohru Danhara(2017) Revised ages of late Holocene tephras in Beppu Bay, central Kyushu, southwest Japan, Quaternary International, Volume 452, pp. 33-42