  We discuss how correlations among momenta of the decay products may yield
information about the CP-parity of the Higgs particle. These are correlations
of decay planes defined by the momenta of pairs of particles as well as
correlations between energy differences. Our study includes finite-width
effects. In the narrow-width approximation the angular correlations coincide
with previously reported results. The correlations between energy differences
turn out to be a much better probe for CP determination than the previously
suggested angular correlations, especially for massive Higgs bosons.
