ELGAMMAL, I. Green tourism planning: triple bottom line sustainability – rhetoric or reality. A case study of the Bluestone development. European Journal of Tourism Research, [S. l.], v. 1, n. 2, p. 147–152, 2008. DOI: 10.54055/ejtr.v1i2.20. Disponível em: https://ejtr.vumk.eu/index.php/about/article/view/20. Acesso em: 13 oct. 2026.