@article{FAA_2006_40_4_a4,
     author = {S. V. Kislyakov and N. Ya. Kruglyak},
     title = {Stability of {Approximation} {Under} the {Action} of {Singular} {Integral} {Operators}},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {49--64},
     publisher = {mathdoc},
     volume = {40},
     number = {4},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_2006_40_4_a4/}
}