1. Advancing Materials Research 1987
2. Proceedings of the 18th International Conference on Low Temperature Physics 1987
3. Yamada Conference XVIl on Superconductivity in Highly Correlated Fermion Systems 1987
4. Proceedings of the High-Tc Superconducton Conference 1987
5. Anderson P. W. lecture series given at the Varenna Summer School July (1987).