@misc{Banasiak_Jacek_Logarithmic, author={Banasiak, Jacek}, howpublished={online}, publisher={Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej}, language={eng}, type={artykuł}, title={Logarithmic norms and regular perturbations of differential equations}, keywords={differential equations, logarithmic norms}, }