@article{DAN_1962_146_2_a1,
     author = {Yu. E. Alenitsyn},
     title = {Some extremal properties of functions multivalent in multiply-connected domains},
     journal = {Doklady Akademii Nauk},
     pages = {267--269},
     publisher = {mathdoc},
     volume = {146},
     number = {2},
     year = {1962},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1962_146_2_a1/}
}