1. Arneson, R. (1999). Egalitarianism and responsibility. Journal of Ethics, 3, 225–247.
2. Braybrooke, D. (1998). The concept of needs, with a heartwarming offer of aid to utilitarianism. In G. Brock (Ed.), Necessary goods. Our responsibility to meet others’ needs (pp. 57–72). Lanham: Rowman & Littlefield Publishers, Inc.
3. Brock, D. W. (2002). Priority to the worse off in health-care resource prioritization. In R. Rosamond, M. P. Battin, & M. Silvers (Eds.), Medicine and social justice. Essays on the distribution of health care (pp. 362–372). New York: Oxford University Press.
4. Brock, G. (Ed.). (1998). Necessary goods: Our responsibility to meet others’ needs. Lanham: Rowman & Littlefield Publishers, Inc.
5. Casal, P. (2007). Why sufficiency is not enough. Ethics, 117, 296–326.