Introduction to Hydrogen Economy and Hydrogen as a Sustainable Energy Carrier. In: Legal Framework of Green Hydrogen Production and Hydrogen Economy for Sustainable Development [Internet]. Scientific Collaborative Online Publishing Universal Academy; 2025 [cited 2026 Aug. 10]. pp. 28-53. (Books of Research Collection). Available from: https://books.scopua.com/index.php/SB/catalog/book/4/chapter/2