BUS, Kateryna. The concept of convalidation of invalid deeds in the civil law of Ukraine. Actual problems of law, [S. l.], n. 3, p. 84–90, 2023. DOI: 10.35774/app2023.03.084. Disponível em: https://appj.wunu.edu.ua/index.php/apl/article/view/1671.. Acesso em: 18 may. 2024.