1. See, for example, the proceedings of the recent International Conferences on Ultra-relativistic Nucleus-Nucleus Collisions: Quark Matter??? 95, Nucl. Phys. A590 (1995);
2. Quark Matter??? 96, Nucl. Phys. A610 (1996);
3. Quark Matter??? 97, Nucl. Phys. A638 (1998);
4. Quark Matter??? 99, Nucl. Phys. A661 (1999).
5. C.-Y. Wong, Introduction to High-Energy Heavy-Ion Collisions, World Scientific, Singapore 1994.