Nowak, Piotr. “The Moral Evaluation of Living Organ Donation and Trade in Human Organs in Light of Kant’s Ethics (in Polish)”. Diametros, no. 46 (December 20, 2015): 30-54. Accessed March 19, 2019. https://www.diametros.iphils.uj.edu.pl/diametros/article/view/835.