1. Possible highT c superconductivity in the Ba?La?Cu?O system
2. Superconductivity at 93 K in a new mixed-phase Y-Ba-Cu-O compound system at ambient pressure
3. Z. Zhongxian, C. Liquan, Y. Qiansheng, H., Yuzhen, L. Jinxiang, C. Genghua, T. Ruming, L. Guirong, C. Changgeng, C. Lie, W. Lianzhong, G. Shuquan, L. Shanlin, and B. Jianqing, to be published in Kexue Tongbao, No. 6, 1987.
4. Z. Fisk, J. D. Thompson, E. Zirngiebl, J. L. Smith, and S. N. Cheong, to be published in Solid State Commun.
5. K. N. Yang, Y. Dalichaouch, J. M. Ferreira, B. W. Lee, J. J. Neumeier, M. S. Torikachvili, H. Zhou, M. B. Maple and R. R. Hake, to be published in Solid State Commun.