25 大分県中部、荷尾杵花崗岩と朝地変成岩類との関係
25 Geological relationship between the Nioki Granite and the Asaji metamorphic rocks in the central Oita prefecture

Takashi Itoyama, Tsutomu Takahashi
1992 Annual Meeting of the Geological Society of Japan  
doi:10.14863/geosocabst.1992.0_128 fatcat:kzfusu2bm5b25do4jdapc7nbqi