@article{IVM_2007_4_a2,
     author = {A. P. Antonov},
     title = {Smoothness of sums of trigonometric series with monotone coefficients},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {21--29},
     publisher = {mathdoc},
     number = {4},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2007_4_a2/}
}