Sacchi, R., S. Scali, M. Fasola, and P. Galeotti. “The Numerical Encoding of Scale Morphology Highly Improves Photographic Identification in Lizards”. Acta Herpetologica, vol. 2, no. 1, June 2006, pp. 27-35, doi:10.13128/Acta_Herpetol-1887.