Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) EHARA Sachio,Case studies on small-scale power generation with the Downhole Coaxial Heat Exchanger,Proc. World Geothermal Congress 2005 (CD-ROM),,,2005,,,,https://cir.nii.ac.jp/crid/1010282256753743747,