1. V. A. Belyakov, Wang Shu-feng et al.:JINR (Dubna, in print).
2. D. I. Blokhintsev, B. M. Barbasev andV. S. Barasenkov:Nuovo Cimento,10, 602 (1959).
3. Wang Zhung:JINR (Dubna, in print.)
4. D. I. Blohinčev, V. S. Baraśenkov andV. G. Grisin:Nuovo Cimento,9, 249 (1958).
5. The author expresses his gratitude toR. M. Lebedev, V. Petržilka andK. D. Tolstov et al. (1) for presenting the data and discussions.