1. Aristotle (1962) Nicomachean Ethics, Translated by Martin Ostwald, New York: Macmillian Publishing Company.
2. Asher N., and Morreau, M. (1991). Common sense entailment: A modal theory of nonmonotonic reasoning, Proceedings of the 12th IJCAI. San Mateo, Morgan Kaufmann, 387–392.
3. Asher N., and Morreau, M. (1995) What some generic sentences mean, In J. Pelletier (ed.), The Generic Book. University of Chicago Press, Chicago, pages 300–338.
4. Bonevac, D. (1991). Ethical impressionism: A response to Braybrooke. Social Theory and Practice 17: 157–173.
5. Bonevac, D., and Seung, T.K. (1988). Conflict in Practical Reasoning. Philosophical Studies 53: 315–345.