KOSIŃSKI, Eryk; MIKULSKA, Anna. 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 . PRAWO i WIĘŹ, Słupsk, n. 35, p. 112–127, 2021. DOI: 10.36128/priw.vi35.194. Disponível em: https://www.prawoiwiez.edu.pl/index.php/piw/article/view/268. Acesso em: 7 jun. 2025.