de Cserna, Zoltan, et al. “Calc-Alkaline Volcanic Rocks in the Pre-Upper Jurassie Basement of South-Central Mexico —a Late Paleozoic-Early Mesozoic Convergent Plate Margin?”. Revista Mexicana De Ciencias Geológicas, vol. 11, no. 2, Feb. 2019, pp. 253-6, https://rmcg.geociencias.unam.mx/index.php/rmcg/article/view/1197.