1. contributions in Quark Matter Formation and Heavy Ion Collisions. Proceedings of the Bielefeld Workshop;Kajantie,1982
2. Invited talks to this third International Conference on Nucleus Nucleus Collisions and Proceedings of the Sixth International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions — Quark Matter,1988
3. Temperature measurement of quark-gluon plasma formed in high energy nucleus-nucleus collisions