Pseudoscalar and vector correlations in instanton vacuum model
  It is shown, that the correct account of quark interaction generated by instanton medium gives the possibility of description on the same ground of both pseudoscalar channel and low lying bound states in the vector channel. It must be noted, that all calculations are made in the approximation, taking into account only zero modes. 
S.V. Esaibegyan, S.N. Tamaryan