, 2004, Ethical issues in the use of cost effectiveness analysis for the prioritization of health resources, in G. Khushf (ed.), Handbook of bioethics, Dordrecht, Springer, pp. 353-380.
, 2001, 'Gert on the limits of morality's requirements', Philosophy and Phenomenological Research 62 (2), 435-440.
, 1998, 'Aggregating costs and benefits', Philosophy and Phenomenological Research 58 (2), 963-967.
, 1991a, 'Defending moral options', Philosophy and Phenomenological Research 51 (4), 909-913.