12. 伊豆大島において噴火直前の水準測量により観測された地盤変動の特徴(日本火山学会1989年春季大会)
12. Some features of ground deformation which observed by levellings just prior to the eruption of Oshima volcano.(Abstracts of Papers Presented at the Spring Meeting of the Society)

T. Miyazaki, S. Sakashita, E. Koyama, M. Sawada
1989 Bulletin of the Volcanological Society of Japan  
doi:10.18940/kazanc.34.2_131_3 fatcat:hdl52uvs3bf55bdhcnjphajfre