1. W.A. Little, Phys. Rev. 134, A1416 (1964), W.A. Little, in Novel Superconductivity, eds. S. Wolf and VKresin, p.341, Plenum press, New York, 1987.
2. The so-called infinite layer compound is excluded in this discussion because its structure is still controversial.
3. Compiledfrom: H. Shaked, P.M. Keane, J.C. Rodriguez, F.F. Owen, R.L. Hitterman, J.D. Jorgensen, “Crystal Structures of High-Tc Superconducting Copper-Oxides”, (Aigonne National Lab oratory and Elsevier Science B.Y 1994)
4. R.M. MacFarlane, et al., Phys.Rev.B 38, 284 (1988)
5. Aleksandov et al., Physica C 162, 1057 (1989)