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@article{AULFM_1992_05_a4, author = {{\L}azarow, Ewa}, title = {The oscillatory behaviour of {I-approximate} derivatives}, journal = {Acta Universitatis Lodziensis. Folia Mathematica}, publisher = {mathdoc}, volume = {05}, year = {1992}, language = {en}, url = {http://geodesic.mathdoc.fr/item/AULFM_1992_05_a4/} }
Łazarow, Ewa. The oscillatory behaviour of Ι-approximate derivatives. Acta Universitatis Lodziensis. Folia Mathematica, Tome 05 (1992). http://geodesic.mathdoc.fr/item/AULFM_1992_05_a4/