Silva, Pablo, Margarita Robaina, Mónica Meireles, and Mara Madaleno. “Eco-Innovation and Emissions Trading: A Sector Analysis for European Countries”. International Journal of Sustainable Energy Planning and Management 32 (October 15, 2021): 5–18. Accessed November 21, 2024. https://journals.aau.dk/index.php/sepm/article/view/6567.