@article{MZM_2003_73_1_a15,
     author = {C. S. Rjutin},
     title = {Continuity of {Operators} of {Generalized} {Rational} {Approximation} in the {Space}  $L_1[0;1]$},
     journal = {Matemati\v{c}eskie zametki},
     pages = {148--153},
     publisher = {mathdoc},
     volume = {73},
     number = {1},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2003_73_1_a15/}
}