  We calculate the cross section of Higgs boson production in the reaction e+e-
-> neutrino anti-neutrino b b-bar for the case of left and right longitudinally
polarized electron beam. Complete set of signal and irreducible background
diagrams is considered.
  We propose a new critical test to identify the Higgs boson provided by the
ratio of cross sections with left and right beam polarization. This quantity is
sensitive to the ratio of Higgs-W and Higgs-Z couplings, since it exhibits the
interplay of bremsstrahlung and fusion mechanisms of Higgs boson production
inherent to the Standard Model scheme.
