@article{MZM_1968_4_2_a11,
     author = {L. I. Bausov},
     title = {The order of approximation to functions of the $Z_\alpha$. {Class} by means of positive linear operators},
     journal = {Matemati\v{c}eskie zametki},
     pages = {201--210},
     publisher = {mathdoc},
     volume = {4},
     number = {2},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1968_4_2_a11/}
}