@article{DAN_1967_172_4_a9,
     author = {M. I. Morozov},
     title = {On the question of uniform approximation of functions by positive linear operators},
     journal = {Doklady Akademii Nauk},
     pages = {787--788},
     year = {1967},
     volume = {172},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1967_172_4_a9/}
}