1. The value of the water: The origins and expansion of thermal tourism in Spain, 1750–2010;Alonso;Journal of Tourism History,2012
2. Amigos de Tharsis (2010). El Hotel Colon y Sundheim. Retrieved October 30, 2012, from Asociación Amigos de Tharsis, Ernesto Deligny: .
3. The income component of the human development index;Anand;Journal of Human Development,2000
4. Edwardian architecture in the Campo de Gibraltar;Aranda;Gibraltar Heritage Journal,2003
5. Los orígenes del turismo malagueño: la sociedad propagandista del clima y embellecimiento de Málaga;Arcas;Jábega,1980