Parica, C. A., F. M. Salani, E. Vera, . M. Remesal, and S. N. Césari. “Geology of the Cerro Negro Formation (Cretaceous) in Livingston Island: Contributions to Its Geochronology and Paleontological Content.”. Revista De La Asociación Geológica Argentina, vol. 62, no. 4, Dec. 2007, pp. 553-67, https://revista.geologica.org.ar/raga/article/view/1032.