USE OF GEOGRAPHICAL INFORMATION SYSTEM APPROACHES FOR THE DIAGNOSIS OF SAN ISIDORO RUINS (MADRID, SPAIN). - Sedano-Espejo, E.; MacKinlay, P.; Sanz-Arauz, D.; Sánchez-Aparicio, M.; Sánchez-Aparicio, L. J. (International Archives of the Photogrammetry, Remote Sensing & Spatial Information Sciences, 2021)