@article{MABA_2004_18_1-2_a4,
     author = {L. Rempulska and Z. Walczak},
     title = {Modified {Szasz-Mirakyan} {Operators}},
     journal = {Mathematica balkanica},
     pages = {53},
     year = {2004},
     volume = {18},
     number = {1-2},
     url = {http://geodesic.mathdoc.fr/item/MABA_2004_18_1-2_a4/}
}