@article{AA_2022_34_4_a1,
     author = {O. L. Vinogradov},
     title = {On constants in abstract inverse theorems of approximation theory},
     journal = {Algebra i analiz},
     pages = {22--46},
     year = {2022},
     volume = {34},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_2022_34_4_a1/}
}