Sources of Civil and Sports Law as a sub-branch of Civil Law of Ukraine. Bulletin of Kharkiv National University of Internal Affairs, [S. l.], v. 97, n. 2, p. 71–80, 2022. DOI: 10.32631/v.2022.2.06. Disponível em: https://visnyk.univd.edu.ua/index.php/VNUAF/article/view/466. Acesso em: 3 oct. 2025.