Poetsch, Thomas. 2018. “Forms and Dynamics of Silica Gel in a Tuff-Dominated Soil Complex: Results of Micromorphological Studies in the Central Highlands of Mexico”. Revista Mexicana De Ciencias Geológicas 21 (1):195-201. https://rmcg.geociencias.unam.mx/index.php/rmcg/article/view/915.