SALVADOR, R.; LÚCIO, J.; FERREIRA, J. Sustainable tourism micro-clusters: the case of Alentejo protected areas. RPER, [S. l.], n. 25/26, p. 5–23, 2010. DOI: 10.59072/rper.vi25/26.313. Disponível em: https://www.review-rper.com/index.php/rper/article/view/313. Acesso em: 2 mai. 2026.