1. Davis, Lawrence H.: 1977, ?Prisoners, Paradox, and Rationality?, American Philosophical Quarterly 14, 319?327.
2. Davis, Lawrence H.: 1985, ?Is the Argument from Symmetry Valid??, in Richmond Campbell and Lanning Sowden (eds.), Paradoxes of Rationality: The Prisoners' Dilemma and Newcomb's Problem (University of British Columbia Press), forthcoming.
3. Selten, Reinhard: 1978, ?The Chain Store Paradox?, Theory and Decision 9, 127?159.
4. Sowden, Lanning: 1983, ?That There Is a Dilemma in the Prisoners' Dilemma?, Synthese 55, 347?352.