KALUĐEROVIĆ, Željko . “ANCIENT GREEK ROOTS OF MODERN ADVOCATING FOR ANIMAL PROTECTION AND WELFARE”. Studia Universitatis Babeș-Bolyai Bioethica, vol. 60, no. 2, Dec. 2015, pp. 29-43, http://193.231.18.162/index.php/subbbioethica/article/view/4484.