SZYNDLAR, Z. A review of Neogene and Quaternary snakes of central and eastern Europe. Part 1: Scolecophidia, Boidae, Colubrinae. Estudios Geológicos, [S. l.], v. 47, n. 1-2, p. 103–126, 1991. DOI: 10.3989/egeol.91471-2412. Disponível em: https://estudiosgeol.revistas.csic.es/index.php/estudiosgeol/article/view/412. Acesso em: 26 abr. 2024.