Carapellese, G., Canivell, J., Martin-del-Rio, J.J., Graciani-García, A. and Cabrera-Revuelta, E. 2020. Assessment of rural wall fortifications using SfM digital photogrammetry technique. Methodological application to Alhonoz Castle (Ecija, Spain). Estoa. Journal of the Faculty of Architecture and Urbanism. 9, 18 (Jul. 2020), 101–113. DOI:https://doi.org/10.18537/est.v009.n018.a09.