Self-potential monitoring at the Sumikawa geothermal field, Akita, Japan Proc. 43rd Workshop on Geothermal Reservoir Engineering Stanford Univ., 1232, 2018
Tosha, T., Kida, Y., Obara, Y., Yamazaki, T., and Watanabe, H., Geothermal development in Oguni, central Kyushu,"