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 I: The Backdrop: Natural Gas Market in the EU and Ukraine. PRAWO i WIĘŹ, Słupsk, n. 34, p. 125–137, 2021. DOI: 10.36128/priw.vi34.246. Disponível em: https://prawoiwiez.edu.pl/index.php/piw/article/view/246. Acesso em: 6 jun. 2025.