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[2] John Clauser, Michael Horne, Abner Shimony, Richard Holt. Proposed Experiment to Test Local Hidden-Variable Theories. Phys. Rev. Lett. 23, 880-884 (1969).
[3] Hudson, Dr. Eric R. “Test of local hidden variable theories: Bell’s inequality and its derivatives.” Lecture.
[4] Hudson, Dr. Eric R. “Quantum Optics Lab: Week 7.” Lab Instructions.
[5] qutools. “Entanglement Demonstrator,” August 30, 2011.