1. Peter Sarnak. Remembering Paul Cohen (1934-2007), Notices Amer. Math. Soc. 57 (2010), 824-838.
2. Alain Badiou. Being and Event, Continuum, London, 2007.
3. Alain Badiou. Number and Numbers, Polity Press, Cambridge, 2008.
4. Paul Cohen. Set Theory and the Continuum Hypothesis, W. A. Benjamin, New York, 1966.
5. Paul Cohen. The discovery of forcing, Rocky Mountain J. Math. 32(4) (2002), 1071-1100.