@article{DAN_1977_233_1_a1,
     author = {V. I. Gavrilov and A.N. Kanatnikov},
     title = {Characterization of the set $M(f)$ for meromorphic functions},
     journal = {Doklady Akademii Nauk},
     pages = {15--17},
     publisher = {mathdoc},
     volume = {233},
     number = {1},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1977_233_1_a1/}
}