Serrano Gil, Óscar. “Territorial and Demographic Aspects of the Networks of Protected Natural Areas of Castilla-La Mancha: 1978-2014”. Anales de Geografía de la Universidad Complutense, vol. 36, no. 1, June 2016, pp. 149-71, https://doi.org/10.5209/rev_AGUC.2016.v36.n1.52717.