Alvarez Villa, J. F., and I. D. Torres Pardo. “The Role of Mobile Devices in Appropriation of City Spaces: An Approach to the Processes of Apprehension and Use of Gyms Outdoor”. HUMAN REVIEW. International Humanities Review / Revista Internacional De Humanidades, vol. 6, no. 1, May 2017, pp. pp. 1-8, https://www.historicoeagora.net/revHUMAN/article/view/333.