1.
Hadzik A, Szromek A, Żylak D. COMPETITIVENESS OF THE TOURISM PRODUCT OF KOŁOBRZEG SPA. aspe [Internet]. 2010Dec.30 [cited 2024Jul.3];9(4):153-64. Available from: https://js.wne.sggw.pl/index.php/aspe/article/view/3944