  In order to obtain polarised parton densities we have made next to leading
order QCD fit using experimental data on deep inelastic structure functions on
nucleons. This fit is compared with the updated fit to coresponding spin
asymmetries. We get very similar results for all fits also for different data
samples. It seems that only polarised parton densities for non-strange quarks
$\Delta u$ and $\Delta d$ are relatively well determined from the present deep
inelastic experiments. Inegrated gluon contribution at $Q^{2}=1 {\rm GeV^{2}}$
is, as in our previous fits, very small.
