Portilla, J.G. and Moreno, F. 2019. A manuscript of the late seventeenth century: first manifestation of an astronomical and chronological autochthonous study in the Nueva Granada. Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales. 43, 167 (Jul. 2019), 255–272. DOI:https://doi.org/10.18257/raccefyn.884.