@article{10_14708_cm_v50i2_5180,
     author = {Eugeniusz Wachnicki},
     title = {Approximation by bivariate {Mazhar-Totik} operators},
     journal = {Commentationes Mathematicae},
     pages = { 141--153},
     publisher = {mathdoc},
     volume = {50},
     number = {2},
     year = {2010},
     doi = {10.14708/cm.v50i2.5180},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/cm.v50i2.5180/}
}