@article{MZM_1973_13_1_a0,
     author = {G. F. Korsakov},
     title = {The number of roots of a~polynomial outside a~circle},
     journal = {Matemati\v{c}eskie zametki},
     pages = {3--12},
     publisher = {mathdoc},
     volume = {13},
     number = {1},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1973_13_1_a0/}
}