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Author (up) Title Year Publication Volume Pages
Loveridge, A.; Duell, R.; Abbari, J.; Moffatt, M. Night Landscapes: A Challenge to World Heritage Protocols 2014 Landscape Review 15 64-75
Rodrigues, A.L.O.; Rodrigues, A.; Peroff, D.M. The Sky and Sustainable Tourism Development: A Case Study of a Dark Sky Reserve Implementation in Alqueva: The Sky and Sustainable Tourism Development 2015 International Journal of Tourism Research 17 292-302