КРАТ, В. І. Invalidity of contract: legislative regulation and types. Problems of legality, [S. l.], n. 138, p. 8–16, 2017. DOI: 10.21564/2414-990x.138.108853. Disponível em: http://plaw.nlu.edu.ua/article/view/108853. Acesso em: 18 jul. 2024.