KARPIUK, Mirosław. Recognizing an Entity as an Operator of Essential Services and Providing Cybersecurity at the National Level. PRAWO i WIĘŹ, Słupsk, n. 4 (42), p. 166–179, 2023. DOI: 10.36128/priw.vi42.524. Disponível em: https://www.prawoiwiez.edu.pl/index.php/piw/article/view/524. Acesso em: 7 jun. 2025.