Korshunov, MM, “Doping-dependent evolution of low-energy excitations and quantum phase transitions within an effective model for high-T-c copper oxides”, European Physical Journal B, 57:3 (2007), 271
Ž. Lj. Kovačević, “Local spin magnetization around the Zn ion which is doped in the CuO2 plane”, Phys. Part. Nuclei Lett., 4:5 (2007), 440