Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Kawagoe Shuji and Chiyonobu Shun and Arato Hiroyuki,"Source rock potential of the middle Miocene Sannai Formation in the Sannai area, Akita prefecture, nothern Japan.",Annual Meeting of the Geological Society of Japan,1348-3935,The Geological Society of Japan,2019,2019,0,489,https://cir.nii.ac.jp/crid/1390285300185378432,https://doi.org/10.14863/geosocabst.2019.0_489