1. Leicht, R., Hammen, M., Shelhaas, K.P., Ziegler, B.: Nucl. Phys.A 362, 111 (1981)
2. Chrien, R., Hofmann, A., Molinari, A.: Phys. Rep.64, 249 (1980)
3. Christillin, P., Rosa-Clot, M.: Nuovo Cimento43 A, 72 (1978); Nuovo Cimento28 A, 29 (1975)
4. Alberico, W.M., Molinari, A.: Proceedings of the Workshop ?From Collective States to Quarks in Nuclei? (Bologna, 1980). In: Lecture Notes in Physics. Vol. 137, p. 348. Berlin, Heidelberg, New York: Springer 1981
5. Ericson, T.E.O., Hüfner, J.: Nucl. Phys.B 57, 604 (1973)