1. A. O. Barut and S. Malin,Rev. Mod. Phys. 40, 632 (1968).
2. A. N. Whitehead,Science and the Modern World (Free Press, New York, 1967), Chapter IV.
3. A. N. Whitehead,Process and Reality, corrected edition, D. R. Griffin and W. Sherbourne, eds. (Free Press, New York, 1978), p. 283.
4. Y. Aharonov and D. Z. Albert,Phys. Dev. D 21, 3316 (1980);24, 359 (1981).
5. S. Malin,Phys. Rev. D 26, 1330 (1982);26, 1856 (1984);Found. Phys. 14, 1083 (1984);16, 1297 (1986).