@misc{Cavalheiro_Albo_Carlos_An, author={Cavalheiro, Albo Carlos}, howpublished={online}, publisher={Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej}, language={eng}, type={artykuł}, title={An existence and approximation theorem for solutions of degenerate nonlinear elliptic equations}, keywords={matematyka}, }