@article{TRSPY_1987_180_a19,
     author = {V. I. Belyi and V. V. Maimeskul},
     title = {On a~constructive characterization of classes of functions admitting quasiconformal extension},
     journal = {Informatics and Automation},
     pages = {47--49},
     publisher = {mathdoc},
     volume = {180},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1987_180_a19/}
}