HADZIK, Andrzej; SZROMEK, Adam; ŻYLAK, Danuta. COMPETITIVENESS OF THE TOURISM PRODUCT OF KOŁOBRZEG SPA. Acta Scientiarum Polonorum. Oeconomia, [S. l.], v. 9, n. 4, p. 153–164, 2010. Disponível em: https://aspe.sggw.edu.pl/article/view/671. Acesso em: 4 apr. 2025.