@article{TIMM_2013_19_2_a6,
     author = {N. A. Baraboshkina},
     title = {Approximation of harmonic functions by algebraic polynomials on a~circle of radius smaller than one with constraints on the unit circle},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {71--78},
     publisher = {mathdoc},
     volume = {19},
     number = {2},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2013_19_2_a6/}
}