@article{COMIM_2004_12_1_a8,
     author = {Walczak, Zbigniew},
     title = {Bernstein-Durrmeyer type operators},
     journal = {Communications in Mathematics},
     pages = {65--72},
     year = {2004},
     volume = {12},
     number = {1},
     mrnumber = {2214675},
     zbl = {1114.41012},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/COMIM_2004_12_1_a8/}
}