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In order to obtain polarised parton densities we have made next to leadingorder QCD fit using experimental data on deep inelastic structure functions onnucleons. This fit is compared with the updated fit to coresponding spinasymmetries. We get very similar results for all fits also for different datasamples. It seems that only polarised parton densities for non-strange quarks$\Delta u$ and $\Delta d$ are relatively well determined from the present deepinelastic experiments. Inegrated gluon contribution at $Q^{2}=1 {\rm GeV^{2}}$is, as in our previous fits, very small.Comment: 16 pages, latex, 2 figure

Comparison of the fits to data on polarized structure functions and spin asymmetries