• J. Annas, “Aristotle on Inefficient Causes,” Philosophical Quarterly 32 (1982), reprinted in T. Irwin (ed.), Aristotle: Metaphysics, Epistemology, Natural Philosophy (New York: 1995).

• D. Charles, “Aristotle on Hypothetical Necessity and Irreducibility,” Pacific Philosophical Quarterly 69 (1988).

• C.A. Freeland, “Accidental Causes and Real Explanations,” and J.M. Moravcsik, “What Makes Reality Intelligible? Reflections on Aristotle’s Theory of Aitia,” in L. Judson (ed.), Aristotle’s Physics: a Collection of Essays (Oxford: 1991).

• S.S. Meyer, “Aristotle, Teleology and Reduction,” Philosophical Review 101 (1992).

• D. Sedley, “Is Aristotle’s Teleology Anthropocentric?” Phronesis 36 (1991).

