1. K.L. Kowalski, Phys. Rev. C 16, 7 (1977).
2. Gy. Bencze and P.C. Tandy, Phys. Rev. C 16, 564 (1977).
3. Most of the relevant references are quoted in: V. Vanzani, The N-Body problem, in Few-Body Nuclear Physics (IAEA, Vienna 1978), in press.
4. V. Vanzani, contribution to the Summer Meeting on Few-Body Nuclear Physics (Uppsala, 1977), and to be published.
5. C. Chandler, Budapest preprint (1977), Bonn preprint (1977).