1. L. J. Boya,Found. Phys. 19, 1303 (1989).
2. M. Berry,Proc. Roy. Soc. A 392, 45 (1984).
3. A. Bohm, L. J. Boya, and M. Kendrick, ?Simple derivation of Berry phase,? University of Texas, C. P. T. preprint, March 1990.
4. E. C. G. Sudarshan and T. Rothman, ?The two-slit interferometer reexamined,? University of Texas, C. P. T. preprint D. O. E.-ER 40200-200, December 1989, to be published.
5. L. C. Biedenharn, private communication to E. C. G. S.