@article{10_14708_wm_v40i01_4976,
     author = {W. Ple\'sniak},
     title = {Czebyszew, {Weierstrass,} {Jackson,} {Bernstein} i ich kontynuatorzy},
     journal = {Wiadomo\'sci Matematyczne},
     pages = { 97--106},
     publisher = {mathdoc},
     volume = {40},
     number = {01},
     year = {2004},
     doi = {10.14708/wm.v40i01.4976},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/articles/10.14708/wm.v40i01.4976/}
}