I. Arquero de Vega, S. Casas Navarro, D. López Sánchez, P. Fandos Pons, and Óscar G. Vázquez Asenjo, “Geobase, the Geographic Information System based on free software of the Land Registry of Spain”, MAPPING, vol. 24, no. 169, pp. 18–24, Sep. 2018.