Durand, M., G. Cassinis, and A. Ronchi. “Remarks on the Permian-Triassic Transition in Central and Eastern Lombardy (Southern Alps, Italy)”. Journal of Iberian Geology 33, no. 2 (January 1, 2007): 143–162. Accessed November 5, 2024. https://revistas.ucm.es/index.php/JIGE/article/view/JIGE0707210143A.