Zontek, Zbigniew, and Ewa Lipianin-Zontek. “INNOVATION STRATEGIES AND COOPERATION FOR REGIONAL TOURISM DEVELOPMENT”. Acta Scientiarum Polonorum. Oeconomia 9, no. 4 (December 30, 2010): 669-677. Accessed December 23, 2024. https://js.wne.sggw.pl/index.php/aspe/article/view/3991.