REBELO, J.; CALDAS, J.; GUEDES, A. The Douro Region: Wine and Tourism. Almatourism - Journal of Tourism, Culture and Territorial Development, [S. l.], v. 6, n. 11, p. 75–90, 2015. DOI: 10.6092/issn.2036-5195/4647. Disponível em: https://almatourism.unibo.it/article/view/4647. Acesso em: 28 jan. 2023.