NIEZGODA, A. Opportunities for evaluation of sustainable tourism – assessing the availability of ETIS indicators in Poland. Turyzm/Tourism, [S. l.], v. 33, n. 1, p. 57–66, 2023. DOI: 10.18778/0867-5856.33.1.06. Disponível em: https://czasopisma.uni.lodz.pl/tourism/article/view/18485. Acesso em: 21 may. 2024.