Ljubisavljević, K., Džukić, G., Vukov, T., & Kalezić, M. (2012). Morphological variability of the Hermann’s tortoise (<em>Testudo hermanni</em>) in the Central Balkans. Acta Herpetologica, 7(2), 253–262. https://doi.org/10.13128/Acta_Herpetol-10930