Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Ihara Masaru,Shale gas revolution: an oil field engineer's point of view,BUTSURI-TANSA(Geophysical Exploration),09127984,The Society of Exploration Geophysicists of Japan,2013,66,4,243-251,https://cir.nii.ac.jp/crid/1390001206496432000,https://doi.org/10.3124/segj.66.243