21P. 国土地理院が作成する火山基本図について(日本火山学会 1984 年度春季大会講演要旨)
21P. Large scale topographic mapping for volcanoes by Geographical Survey Institute(Abstracts of Papers Presented at the Spring Meeting of the Society)

M. Nagaoka, T. Takeda, Y. Ota
1984 Bulletin of the Volcanological Society of Japan  
doi:10.18940/kazanc.29.2_127_3 fatcat:2h5izof34ngb3il3ckwbtwmplm