1. J.S. Schilling, in: Proceedings of the NATO Advanced Research Workshop Frontiers of High Pressure Research II: Application of High Pressure to Low Dimensional Novel Electronic Materials, 10–15 (2001) June, Kluwer, Boston, pp. 345.
2. C.W. Chu, V. Diatschenko, Phys. Rev. Lett. 41, 572 (1978).
3. W.L. McMillan, Phys. Rev. 167, 331 (1968).
4. C.W. Chu, History of the original ideas and basic discoveries, in: H.B. Newman, T. Ypsilantis (Eds.), Particle Physics, Plenum, New York, p. 793 (1996).
5. L. Gao, Y.Y. Xue, F. Chen, Q. Xiong, R.L. Meng, D. Ramirez, C.W. Chu, J.H. Eggert, H.K. Mao, Phys. Rev. B 50, 4260 (1994).