@article{DAN_1970_195_5_a7,
     author = {A. J. Lovater},
     title = {Boundary behavior of the derivative of a univalent function},
     journal = {Doklady Akademii Nauk},
     pages = {1033--1035},
     publisher = {mathdoc},
     volume = {195},
     number = {5},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1970_195_5_a7/}
}