  Formal similarity between k- area for the contribution from ZR-states and the
remnant Fermi surface has been found. Presence of the contribution from
3B_{1g}- states at other k- area means the two-channel processes of scattering.
As consequence, the method of integration with a constant energy interval
reproduces not only remnant Fermi surface at least, but one of the
contributions of above states to the total spectral intensity
