@article{MZM_1983_33_2_a2,
     author = {V. Ya. Gutlyanskii and V. A. Shchepetev},
     title = {Sharp estimates of the modulus of a univalent analytic function with quasiconformal continuation},
     journal = {Matemati\v{c}eskie zametki},
     pages = {179--186},
     publisher = {mathdoc},
     volume = {33},
     number = {2},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1983_33_2_a2/}
}