Publisher
Springer Science and Business Media LLC
Reference7 articles.
1. L. L. Foldy andS. A. Wouthuysen:Phys. Rev.,78, 29 (1950).
2. P. M. Mathews andA. Sankaranarayanan:Prog. Theor. Phys.,26, 499 (1961).
3. E. I. Blount:Phys. Rev.,128, 2454 (1962).
4. G. R. Osche:Phys. Rev. D,13, 2182 (1977).
5. D. Bohm andJ. P. Vigier:Phys. Rev.,109, 1882 (1958).