ZLYVKO, Stanislav. Head of the penitentiary institutions: the issue of legal consolidation of the requirements of professional competence. Actual problems of law (Aktual’ni problemi pravoznavstva), [S. l.], n. 1, p. 86–90, 2018. DOI: 10.35774/app2018.01.086. Disponível em: https://appj.wunu.edu.ua/index.php/apl/article/view/470. Acesso em: 31 mar. 2026.