Zielińska-Szczepkowska, Joanna, and Donata Sawulska-Kamińska. “Tourism in Smart Specialisation in Regions of Eastern Poland”. Studia Oeconomica Posnaniensia 6, no. 10 (October 31, 2018): 37–59. Accessed September 3, 2026. https://journals.ue.poznan.pl/soep/article/view/3869.