@article{ZNSL_1974_44_a1,
     author = {V. A. Baranova and N. A. Lebedev},
     title = {On a~lemma of {G.\,M.~Goluzin}},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {7--16},
     publisher = {mathdoc},
     volume = {44},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1974_44_a1/}
}