Gama-Castro, Jorge Enrique, et al. “Neosols, Relict Paleosols, and Alterites in the Transmexican Volcanic Belt, Morelos State: Characterization and Regional Spatial Distribution”. Revista Mexicana De Ciencias Geológicas, vol. 21, no. 1, May 2018, pp. 160-74, https://rmcg.geociencias.unam.mx/index.php/rmcg/article/view/912.