Wagner, P., and P.-A. Crochet. “The Status of the Nomina Trapelus Savignyi Audouin, 1827 and Agama Savignii Duméril &Amp; Bibron, 1837 and the Valid Nomen of the Savigny’s Agama (Sauria: Agamidae)”. Zootaxa, vol. 2209, no. 1, Aug. 2009, pp. 57–64, doi:10.11646/zootaxa.2209.1.4.