@article{DEMR_2017_7_a4,
     author = {M. G. Magomed-Kasumov},
     title = {Convergence rate estimate of sine and cosine series with $1/k^q$ coefficients},
     journal = {Daghestan Electronic Mathematical Reports},
     pages = {47--51},
     publisher = {mathdoc},
     volume = {7},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DEMR_2017_7_a4/}
}