1.
DERLUKIEWICZ, Niki and MEMPEL-ŚNIEŻYK, Anna. European cities in the face of sustainable development. Ekonomia i Prawo. Economics and Law. Online. 30 June 2018. Vol. 17, no. 2, pp. 125-135. [Accessed 5 July 2025]. DOI 10.12775/EiP.2018.009.