@article{DAN_1972_203_2_a7,
     author = {K. M. Musaev},
     title = {On some extremal properties of generalized analytic functions},
     journal = {Doklady Akademii Nauk},
     pages = {289--292},
     publisher = {mathdoc},
     volume = {203},
     number = {2},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1972_203_2_a7/}
}