HERNANDEZ-SANTIAGO, Faustino; MARTINEZ-REYES, Magdalena; PEREZ-MORENO, Jesús  and  MATA, Gerardo. Pictographic representation of the first dawn and its association with entheogenic mushrooms in a 16th century Mixtec Mesoamerican Codex. Rev. Mex. Mic [online]. 2017, vol.46, pp.19-28. ISSN 0187-3180.