1. J.S. Bell,Physics 1 (1964) 195.
2. A. Aspect, P. Grangier, and G. Roger,Phys. Rev. Lett. 49 (1982) 91.
3. G.C. Ghirardi, A. Rimini, and T. Weber,Phys. Rev. 34D (1986) 470.
4. J.S. Bell inSchrödinger-Centenary of a Polymath, C.W. Kilmister, ed. (Cambridge University Press, Cambridge, 1987).
5. G.C. Ghirardi and A. Rimini, inSixty-two Years of Uncertainty, A. Miller, ed. (Plenum, New York, 1990).