M. G. González Pérez, S. L. Serafin González, L. de Haro de León, S. M. Flores, and J. A. Lizcano Caro, “The progressive and rational occupation of the urban system boundary: entropies in La Azucena, Mexico”, Acta Universitaria, vol. 29, pp. 1–16, Oct. 2019, doi: 10.15174/au.2019.2106.