1. Albert, D. and Loewer, B. (1990) in A. Fine, PSA
1990, Volume I, Philosophy of Science Association, E. Lansing, p. 277.
2. Albert, D. and Vaidman, L. (1988), Physics Letters A, 139, 1.
3. Bell, J.S. (1987), Speakable and Unspeakable in Quantum Mechanics, Cambridge University Press, Cambridge.
4. Bohm, D. (1952), Physical Review,85, pp. 166, 180.
5. Born, M. (1953), Scientific Papers Presented to Max Born, Edinburgh, Oliver and Boyd.