1. Geothermal energy;White;U.S. Geol. Surv. Circ.,1965
2. Geothermal energy and its preservability;Fukutomi;J. Jap. Geothermal Energy Ass.,1964
3. Distribution of volcanoes and seismicity of the mantle in Japan;Sugimura;Bull. volcan. Soc. Jap.,1965
4. Thermal discharge and hydrothermal system of Owakudani, Sounzan Geothermal Area. Hakone Volcano;Yuhara;J. Jap. Geothermal Energy Ass.,1968
5. Energies dissipated with volcanic activities;Nakamura;Bull. volcan. Soc. Jap.,1965