@article{AA_2018_30_5_a3,
     author = {O. L. Vinogradov},
     title = {Sharp constants for approximations of convolution classes with an integrable kernel by spaces of shifts},
     journal = {Algebra i analiz},
     pages = {112--148},
     publisher = {mathdoc},
     volume = {30},
     number = {5},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_2018_30_5_a3/}
}