@article{MZM_1984_36_1_a12,
     author = {S. P. Baiborodov},
     title = {Approximation of functions of several variables by {Fejer} sums},
     journal = {Matemati\v{c}eskie zametki},
     pages = {123--136},
     publisher = {mathdoc},
     volume = {36},
     number = {1},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1984_36_1_a12/}
}