@article{DAN_1992_325_1_a4,
     author = {S. R. Tlyusten},
     title = {Multivalent conformal mappings with a composite free boundary},
     journal = {Doklady Akademii Nauk},
     pages = {28--31},
     year = {1992},
     volume = {325},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1992_325_1_a4/}
}