1.
HANNA CZERWIŃSKA, Izabela Adrych-Brzezińska,. The obligation of the parties to cooperate in the substitution agreement. Studia Iuridica Toruniensia. Online. 10 October 2018. Vol. 21, pp. 11-25. [Accessed 21 July 2024]. DOI 10.12775/SIT.2017.024.