@article{SM_2019_210_4_a6,
     author = {A. M. Sedletskii},
     title = {Equivalence of the trigonometric system and its perturbations in the spaces $L^p$ and~$C$},
     journal = {Sbornik. Mathematics},
     pages = {606--624},
     publisher = {mathdoc},
     volume = {210},
     number = {4},
     year = {2019},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2019_210_4_a6/}
}