@article{oai:hi-tech.repo.nii.ac.jp:00004048, author = {OHTA, Masaru and 太田, 勝}, journal = {八戸工業大学地域産業総合研究所紀要, The Bulletin of Institute for Promotion of Community Industrial Activities Hachinohe Institute of Technology}, month = {Mar}, pages = {21--24}, volume = {19}, year = {2021}, yomi = {オオタ, マサル} }