@article{IVM_1984_6_a12,
     author = {E. A. Shirokova},
     title = {Some operators that do not lead out of the class of functions univalent in the disk},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {66--72},
     publisher = {mathdoc},
     number = {6},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1984_6_a12/}
}