1. T. Xiang, X. Wang “Finite temperature and momentum space DMRG, Density-Matrix Renormalization: A New Numerical Method in Physics, Lecture Note in Physics vol 528, pages 149-172, edited by I. Peschel et al, Springer 1999.
2. C. Panagopoulos and T. Xiang, “Scaling of superconducting energy gap with critical temperature in high-Tc superconductors”, Physica C 317-318 (1999) 373-377.
3. C. Panagopoulos, J. L. Tallon, and T. Xiang, “Effects of the Cu-O chains on the anisotropic penetration depth of YBa2Cu4O8”, Physical Review B 59 (1999) R6635-R6638 (Rapid Communications). Cond-mat/9812333.
4. T. Xiang, Physical properties of d-wave superconductors and the pairing symmetry of high temperature superconductivity, Chapter 11 in “Fundamental Study of High Temperature Superconductors”, edited by W.Z. Zhou and W.Y. Liang, Shanghai Science and Technology Press (1999), pp414-453.