BILLE, T. Eggs and hatchlings of the Mexican salamander Pseudoeurycea cephalica (Caudata: Plethodontidae). Revista de Biología Tropical, [S. l.], v. 46, n. 2, p. 447–452, 1998. DOI: 10.15517/rbt.v46i2.19694. Disponível em: https://www.revistas.ucr.ac.cr/index.php/rbt/article/view/19694. Acesso em: 11 may. 2025.