@article{MZM_1985_38_1_a6,
     author = {A. Yu. Vasil'ev},
     title = {Mutual variation of the initial coefficients of univalent functions},
     journal = {Matemati\v{c}eskie zametki},
     pages = {56--65},
     year = {1985},
     volume = {38},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1985_38_1_a6/}
}