%0 Journal Article %T Phenomenological Analysis of Data on Inclusive and Semi-inclusive Spin Asymmetries %A M. Kurzela %A J. Bartelski %A S. Tatur %J Physics %D 1998 %I arXiv %X We present a phenomenological analysis of data on both inclusive and semi-inclusive spin asymmetries. We examine the impact of the semi-inclusive results presented by SMC on the determination of polarized parton distributions performing global fits with different sets of observables. We discuss the flavour dependence of the polarized sea inside a nucleon. %U http://arxiv.org/abs/hep-ph/9807355v1