d_{3z^2-r^2} Orbital in high-Tc cuprates: Excitonic spectrum, metal-insulator phase diagram, optical conductivity and orbital character of doped holes
d_{x^2-y^2} Pair Domain Walls
d_{x^2-y^2} pairing of composite excitations in the 2D Hubbard model
d_{x^2-y^2} Symmetry and the Pairing Mechanism
d_{x^2-y^2}- vs. d_{xy}- like pairings in organic superconductors κ-(BEDT-TTF)_2 X
d_{x^2-y^2}-Wave Pairing Fluctuations and Pseudo Spin Gap in Two-Dimensional Electron Systems
d_{x^2-y^2}-wave superconductivity and the Hubbard model