International Commisision on Zoological Nomenclature. 1956. Opinion 390. Determination under the Plenary Powers of the taxon to which shall be applicable the specific name simusLinnaeus, 1766, as published in the combination Coluber simus (Class Reptilia). pp. 273–284 InHemming, F. (ed.). Opinions and declarations rendered by the International Commission on Zoological Nomenclature. Volume 12. Part 13. International Trust for Zoological Nomenclature: London. BHL