1.
Arche A, Díez J, López Gómez J. Identification of the Early Permian (Autunian) in the subsurface of the Ebro Basin, NE Spain, and its paleogeographic consequences. JIGE. 2007;33(1):125-133. Accessed July 24, 2026. https://revistas.ucm.es/index.php/JIGE/article/view/JIGE0707120125A