Hołub, Grzegorz. “Human Dignity, Speciesism, and the Value of Life”. Studia Ecologiae et Bioethicae 14, no. 4 (December 31, 2016): 81–95. Accessed May 5, 2024. https://czasopisma.uksw.edu.pl/index.php/seb/article/view/6262.