@article{TIMM_2020_26_4_a1,
     author = {R. R. Akopyan},
     title = {Analog of the {Hadamard} {Theorem} and {Related} {Extremal} {Problems} on the {Class} of {Analytic} {Functions}},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {32--47},
     year = {2020},
     volume = {26},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2020_26_4_a1/}
}