Kok, P.J., Fuenmayor, G.A.R. and Pauwels, O.S. 2007.

The taxonomic status of the Venezuelan snakes Atractus matthewi and A. nororientalis (Serpentes, Colubridae)

. Zootaxa. 1493, 1 (May 2007), 66–68. DOI:https://doi.org/10.11646/zootaxa.1493.1.4.