@article{TIMM_2016_22_4_a5,
     author = {A. G. Babenko and T. Z. Naum},
     title = {One-sided integral approximations of the generalized {Poisson} kernel by trigonometric polynomials},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {53--63},
     year = {2016},
     volume = {22},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2016_22_4_a5/}
}