Birnbacher, Dieter. “Terminal Sedation, Euthanasia and Causal Roles”. Acta Universitatis Lodziensis. Folia Philosophica. Ethica-Aesthetica-Practica, no. 21 (January 1, 2008): 33–43. Accessed May 31, 2026. https://czasopisma.uni.lodz.pl/philosophica/article/view/18902.