Blanco Saenz, Silvia Patricia, and Luis Carlos Esquivel-Salas. “Estimation of the Construction Period of the Buildings (construction Period) in the Canton of San José by Analysis of Aerial Photographs”. Geographical Journal of Central America, vol. 2, no. 67, Mar. 2021, pp. 85-106, https://doi.org/10.15359/rgac.67-2.3.