1. A. S. Davydov, Excited States of Nuclei (Atomizdat, Moscow, 1967) [in Russian].
2. J. M. Eisenberg and W. Greiner, Nuclear Theory (North-Holland, Amsterdam, 1976; Atomizdat, Moscow, 1973-1976), Vols. I–III.
3. I. E. Kashuba and Yu. V. Porodzinskii, Ukr. Fiz. Zh. 44, 677 (1999).
4. R. V. Jolos and Yu. V. Palchikov, Yad. Fiz. 63, 633 (2000) [Phys. At. Nucl. 63, 570 (2000)].
5. R. Lecomte, P. Paradis, J. Barrette, et al., Nucl. Phys. A 284, 123 (1977).