The Sky and Sustainable Tourism Development: A Case Study of a Dark Sky Reserve Implementation in Alqueva A.L.O. Rodrigues A. Rodrigues D.M. Peroff Publication Journal: International Journal of Tourism Research Year of Publication: 2015 Volume: 17 Issue: 3 Pagination: 292-302 Identifiers Other Numbers: 2-s2.0-84927073328 Alternative titles DOIGoogle ScholarBibTeXRIS Locators