1. Schrödinger E.: Discussion of probability relations between separated systems. Proc. Cam. Phil. Soc. 555563 (1935); ibid. 446451 (1936)
2. Bell, J.S.: The theory of local beables. Epistemol. Lett. 9 (1976); reprinted in Dialectica 39, 85–96 (1985) and in [4]
3. Bell, J.S.: Free variables and local causality. Epistemol. Lett. 15 (1977); reprinted in Dialectica 39, 103–106 (1985) and in [4]
4. Bell J.S.: Speakable and Unspeakable in Quantum Mechanics. Cambridge University Press, Cambridge (1987)
5. Clauser J.F., Horne M.A., Shimony A., Holt R.A.: Proposed experiment to test local hidden-variable theories. Phys. Rev. Lett. 23, 880–884 (1969)