Hlavnova, Barbara, Milena Svitekova, and Jana Simonidesova. “Analysis of the Energy Mix of Slovakia in the Context of Improvement of Quality of the Environment”. Communications - Scientific letters of the University of Zilina 14, no. 4A (December 31, 2012): 68-72. Accessed April 6, 2026. http://journals.uniza.sk/index.php/communications/article/view/795.