1. V. V. Vanagas, AlgebraicMethods in Nuclear Theory (Mintis, Vil’nyus, 1971) [in Russian].
2. K. I. Yankauskas, V. M. Bondarenko, and A. K. Petrauskas, Yad. Fiz. 54, 935 (1991) [Sov. J. Nucl. Phys. 54, 566 (1991)].
3. I. Rapoport, Can. J. Phys. 65, 574 (1987).
4. R. Madey et al., Phys. Rev. C 35, 2011 (1987).
5. I. Rapoport et al., Nucl. Phys. A 427, 332 (1984).