1. E4 Tech, The Fuel Cell Industry Review 2020, March 2021, ()
2. The Japan Gas Association, news release, Cumulative sales of household fuel cell “ENE-FARM” exceeded 400,000 units, 5th August 2021 (https://www.gas.or.jp/newsrelease/)
3. Arias J., Hydrogen and Fuel Cells in Japan. Report from the EU-Japan Centre for Industrial Cooperation 2019
4. European Commission, European Green Deal: Commission proposes transformation of EU economy and society to meet climate ambitions, Brussels, 14th July 2021 (https://ec.europa.eu/commission/presscorner/detail/en/IP_21_3541)
5. European Commission, The role of hydrogen in meeting our 2030 climate and energy targets, Brussels, July 2021 (https://ec.europa.eu/commission/presscorner/detail/en/fs_21_3676