Madhavaraju, Jayagopal, and Carlos M. González-León. “Depositional Conditions and Source of Rare Earth Elements in Carbonate Strata of the Aptian-Albian Mural Formation, Pitaycachi Section, Northeastern Sonora, Mexico Jayagopal”. Revista Mexicana de Ciencias Geológicas 29, no. 2 (August 28, 2013). Accessed May 2, 2025. https://www.rmcg.unam.mx/index.php/rmcg/article/view/153.