1. Y. B. Zeldovich, Zh. Eksp. Teor. Fiz. 1531 (1958) [JETP, 1184 (1957)]; see also review V. M. Dubovik, and L. A. Tosunyan, Sov. J. Part. Nucl. 504 (1983).
2. V. V. Flambaum and I. B. Khriplovich, Zh. Eksp. Teor. Fiz. 1656 (1980) [JETP, 835 (1980)]; see also E. M. Henley, W.-Y. P. Hwang, G. N. Epstein, Phys. Lett. B 349 (1979).
3. Particle Data Group, Phys. Rev. D 010001 (2002).
4. C. S. Wood, et al., Science 1759 (1997).
5. I. B. Khriplovich, Parity Nonconservation in Atomic Phenomena (Gordon & Breach, 1991).