@article{DAN_1974_216_3_a6,
     author = {M. B. Levin},
     title = {An estimate for the derivative of a meromorphic function on the boundary of a region},
     journal = {Doklady Akademii Nauk},
     pages = {495--497},
     publisher = {mathdoc},
     volume = {216},
     number = {3},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1974_216_3_a6/}
}