Stability of the d-wave pairing with respect to the intersite Coulomb   repulsion in cuprate superconductors
  Within the spin-fermion model for cuprate superconductors, the influence of the intersite Coulomb interactions $V_2$ and $V_2'$ between holes located at the next-nearest-neighbor oxygen ions of CuO$_2$ plane on the implementation of the d_{x^2-y^2}-wave pairing is studied. It is shown that d-wave pairing can be suppressed only for unphysically large values of $V_2$ and $V_2'$. 
V.V. Val'kov, D.M. Dzebisashvili, M.M. Korovushkin, A.F. Barabanov
cond-mat.supr-con