McCarthy, A. “Unintended Morally Determinative Aspects (UMDAs): Moral Absolutes, Moral Acts and Physical Features in Reproductive and Sexual Ethics”. Studia Philosophiae Christianae, vol. 51, no. 2, Mar. 2017, pp. 143-58, https://czasopisma.uksw.edu.pl/index.php/spch/article/view/1262.