ZONTEK, Zbigniew; LIPIANIN-ZONTEK, Ewa. INNOVATION STRATEGIES AND COOPERATION FOR REGIONAL TOURISM DEVELOPMENT. Acta Scientiarum Polonorum. Oeconomia, [S. l.], v. 9, n. 4, p. 669–677, 2010. Disponível em: https://aspe.sggw.edu.pl/article/view/655. Acesso em: 4 apr. 2025.