Kosiński, Eryk, and Anna Mikulska. “Assessing the Rules of Functioning and Organization of the Wholesale Natural Gas Market in the European Union and Ukraine: Legal and Socio-Political Perspective: Part 2: Regulatory Issues and Requirements ”. LAW & SOCIAL BONDS, no. 35 (March 27, 2021): 112–127. Accessed October 15, 2026. https://prawoiwiez.edu.pl/index.php/piw/article/view/268.