1. A. Bouyssy, Nucl. Phys. A 381, 445 (1982).
2. D. J. Milliner, C. B. Dover, and A. Gal, Phys. Rev. C 38, 2700 (1988).
3. A. A. Usmani, S. C. Pieper, and Q. N. Usmani, nucl-th/9502008.
4. J. Caro, C. García-Recia, and J. Nieves, nucl-th/9801065.
5. I. N. Filikhin and S. L. Yakovlev, Yad. Fiz. 63, 409 (2000) [Phys. At. Nucl. 63, 343 (2000)].