@article{MZM_1976_19_5_a4,
     author = {V. E. Maiorov},
     title = {The best approximation of classes $W_1^r(I^s)$ in the space $L_\infty(I^s)$},
     journal = {Matemati\v{c}eskie zametki},
     pages = {699--706},
     publisher = {mathdoc},
     volume = {19},
     number = {5},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1976_19_5_a4/}
}