Utiger, Helfenberger, Schätti, Schmidt, Ruf & Ziswiler, 2002 : Molecular systematics and phylogeny of Old and New World ratsnakes, Elaphe auct., and related genera (Reptilia, Squamata, Colubridae). Russian Journal of Herpetology, vol. 9, n. 2, p. 105–124 (texte intégral).
