1. M.B. Kislinger, P.D. Morley: Phys. Rev.D13, 2771 (1976)
2. R. Amshelty, P. Koehler, L. McLerran: Phys. Rev.D22, 2793 (1980); L. McLerran: Lectures presented at the 1982 Artic School of Physics, Akaslampalo, Finland. For the general review and status: Quark matter formation and heavy ion collisions, eds. N. Jacob, J. Tran Than Van. Phys. Rep.88, 321 (1982)
3. T. Celik, J. Engels, H. Satz: Phys. Lett.125B, 411 (1983)
4. V. Baluni: Phys. Rev.D19, 2227 (1979)
5. R.J. Crewther et al.: Phys. Lett.88B, 123 (1979)