1. Superconductivity at 93 K in a new mixed-phase Y-Ba-Cu-O compound system at ambient pressure
2. Z. Fisk, J.D. Thompson, E. Zirngiebl, J.L. Smith and S.-W. Cheong, to be published.
3. Superconductivity above 90 K in magnetic rare earth-barium-copper oxides
4. F. Garcia-Alvarado, E. Moran, M. Vallet, J.M. Gonzalez-Calbet, M.A. Alario, M.T. Perez-Frias, J.L. Vincent, S. Ferrer, E. Garcia-Michel and M.C. Asensio, Solid State Commun., in press.
5. L.C. Porter, R.J. Thorn, U. Geiser, A. Umezawa, H.H. Wang, W.K. Kwok, H.-C. Kao, M.R. Monaghan, G.W. Crabtree, K.D. Carlson and J.M. Williams, to be published.