  Topology of Liouville foliations for an analogue of the Kovalevskaya
integrable case on Lie algebra so(4) is discussed. Fomenko-Zieschang invariants
(i.e. marked molecules) were calculated for these foliations on every regular
isoenergy submanifold. The corresponding stratification of the
three-dimensional space of parameters of these manifolds is described in
details.
