Capdeón Frías, M., and C. J. Durá Aleman. “Introduction to the Concept of Private Conservation ‘new’ Tools for Protecting Biodiversity”. Ciudad Y Territorio Estudios Territoriales, vol. 51, no. 199, Mar. 2019, pp. 27-42, https://recyt.fecyt.es/index.php/CyTET/article/view/76713.