@article{MZM_1976_19_4_a4,
     author = {A. A. Gol'dberg and V. A. Grinshtein},
     title = {The logarithmic derivative of a~meromorphic function},
     journal = {Matemati\v{c}eskie zametki},
     pages = {525--530},
     publisher = {mathdoc},
     volume = {19},
     number = {4},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1976_19_4_a4/}
}