1. The Journal of Philosophy;P Benson,1987
2. Benson, P. (1990), “The Moral Improtance of Free Action.” The Southern Journal of Philosophy XXVIII (no. 1): 1–18.
3. Cockburn, D. (1995), “Responsibility and Necessity.” Philosophy 70: 409–427.
4. Dennett, D. C.(1984), Elbow Room. Oxford: Oxford University Press.
5. Fischer, J. M. (1994), The Metaphysics of Free Will. Oxford: Blackwell.