@article{MZM_2018_104_1_a0,
     author = {P. A. Borodin},
     title = {Approximation by {Sums} of the {Form} $\sum_k\lambda_kh(\lambda_kz)$ in the {Disk}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {3--10},
     publisher = {mathdoc},
     volume = {104},
     number = {1},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2018_104_1_a0/}
}