@article{MZM_1971_9_5_a1,
     author = {V. L. Velikin and N. P. Korneichuk},
     title = {Accurate estimates of deviations of spline approximations to classes of differentiable functions},
     journal = {Matemati\v{c}eskie zametki},
     pages = {483--494},
     publisher = {mathdoc},
     volume = {9},
     number = {5},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1971_9_5_a1/}
}