1. Medical Ethics Working Party on the Ethics of Prolonging Life and Assisting Death;Institute of;Assisted death. Lancet,1990
2. Euthanasia and other medical decisions concerning the end of life;der Maas PJ, Van; van Delden JJM; L, Piinenborg; CWN, Looman;Lancet,1991
3. The living wvill;Concern, Age; of Gerontology, Institute; of Medical Law, Centre; Ethics, King's College; London,1988