1. Feynman, R.P., Leighton, R.B., Sands, M.: The Feynman Lectures on Physics, vol. 3. Addison-Wesley, Reading (1965)
2. Einstein, A., Podolsky, B., Rosen, N.: Can quantum-mechanical description of physical reality be considered complete? Phys. Rev. 41, 777–780 (1935)
3. Born, M.: Zur Quantenmechanik der Stoßvorgänge (Quantum mechanics of collision). Z. Phys. 38, 803–827 (1926)
4. Popper, K.R.: Quantum mechanics without the “observer”. In: Bunge, M. (ed.) Quantum Theory and Reality, pp. 1–12. Springer, New York (1967)
5. Lande, A.: New Foundations of Quantum Mechanics. Cambridge University Press, London (1965)