Rappaport, Margaret Boone, and Christopher Corbally SJ. “Did Morality First Evolve in Homo Erectus?”. Philosophical Problems in Science (Zagadnienia Filozoficzne w Nauce), no. 61 (December 21, 2016): 105–131. Accessed April 24, 2024. https://zfn.edu.pl/index.php/zfn/article/view/360.