HANNA CZERWIŃSKA, I. A.-B. The obligation of the parties to cooperate in the substitution agreement. Studia Iuridica Toruniensia, [S. l.], v. 21, p. 11–25, 2018. DOI: 10.12775/SIT.2017.024. Disponível em: https://apcz.umk.pl/SIT/article/view/SIT.2017.024. Acesso em: 20 apr. 2024.