Maciej Sołtysik, Karolina Mucha-Kuś. “High-Efficiency Gas Cogeneration – an Assessment of the Support Mechanism”. Acta Energetica, no. 03 (September 30, 2015): 97–107. Accessed September 14, 2025. https://www.actaenergetica.org/index.php/journal/article/view/443.