1. Brink, D.M.: Many-Body Description of Nuclear Structure and Reactions, International School of Physics, Enrico Fermi, Course XXXVI, p. 247. Bloch, C. (ed.). New York: Academic Press 1966
2. Zamick, L., Zheng, D.C., Lee, S.J., Caballero, J.A., Moya de Guerra, E.: Ann. Phys. 212, 402 (1991)
3. Nilsson, S.G.: K. Dan. Vidensk. Selsk., Mat. Fys. Medd. 29, 16 (1955)
4. Skyrme, T.H.R.: Philos. Mag. 1, 1043 (1956)
5. Skyrme, T.H.R. Nucl. Phys. 9, 615 (1959)