1. Wildermuth, K., McClure, W.: Cluster Representation of Nuclei. Berlin-Heidelberg-New York: Springer 1964; Wildermuth, K., Tang, Y. C.: A Unified Theory of the Nucleus. In: Clustering Phenomena in Nuclei, Vol. 1 (Wildermuth, K., Kramer, P., eds.). Braunschweig: Vieweg 1977
2. Hoffmann, H. M.: Resonating Group Calculations in Nuclear Few-Body System. In: Few-Body Systems in Physics, Vol. 1 (Zeitnitz, B. ed.). Amsterdam: North-Holland 1984
3. Filippov, G. F.: Riv. Nuovo Cim.12, 1 (1989).
4. Okhrimenko, I. P.: Nucl. Phys.A424, 121 (1984)
5. Okhrimenko, I. P.: Few-Body System2, 169 (1987)