Gryszel, Piotr, Daria Jaremen, and Andrzej Rapacz. “INNOVATION OF TOURISM ENTERPRISES BASED ON THE EXAMPLE OF KARPACZ”. Acta Scientiarum Polonorum. Oeconomia 9, no. 4 (December 30, 2010): 143–152. Accessed April 20, 2024. https://aspe.sggw.edu.pl/article/view/670.