1. A Sandulescu, D N Poenaru and W Greiner, Sov. J. Part. Nucl. 11, 528 (1980)
2. H J Rose and G A Jones, Nature 307, 245 (1984)
3. D V Aleksandrov, A F Belyatskii, Y A Glukhov, E Y Nikolskii, B G Novatskii, A A Ogloblin and D N Stepnov, JETP Lett. 40, 909 (1984)
4. R K Gupta and W Greiner, Int. J. Mod. Phys. E 3, 335 (1994)
5. Y S Zamyatnin, V L Mikheev, S P Tret’yakova, V I Furman, S G Kadmenskii and Y M Chuvil’skii, Sov. J. Part. Nucl. 21, 231 (1990)