Tracz M, Bajgier-Kowalska M, Wójtowicz B. Transformation in the Tourist Services and their Impact on the Perception of Tourism by the Residents of Krakow (Poland). Prace KGP PTG [Internet]. 2019 Mar. 29 [cited 2024 Apr. 29];33(1):164-77. Available from: https://prace-kgp.uken.krakow.pl/article/view/20801653.331.13