1. 1) Wakui, T.; Yokoyama, R.; Shimizu, K., Energy, 35(2), 740-750 (2010)
2. 2) Dorer, V.; Weber, R.; Weber, A., Energy and Buildings, 37(11), 1132-1146 (2005)
3. 3) Sumitomo, T.; Akisawa, A.; Ikegami, T.; Nakayama, M., J. Jpn. Inst. Energy, 98(7), 149-156 (2019):住友俊哉,秋澤淳,池上貴志,中山政行,日エネ誌, 98(7), 149-156 (2019)
4. 4) Tomofuji, D.; Akisawa, A., J. Jpn. Society of Energy and Resources, 39(5), 1-10 (2018):友藤大輔,秋澤淳,J. Jpn. Society for Energy and Resources, 39(5), 1-10 (2018)
5. 5) Ministry of Economy, Trade and Industry, Strategic Roadmap of hydrogen and Fuel cells ~Action plan for industrial, academic and public sectors to achieve hydrogen society~ (2019):資源エネルギー庁,水素・燃料電池戦略ロードマップ〜水素社会実現に向けた産学官のアクションプラン〜,(2019)