@article{DAN_1980_254_5_a0,
     author = {A. K. Bakhtin},
     title = {Coefficients of functions of the class $S$},
     journal = {Doklady Akademii Nauk},
     pages = {1033--1035},
     publisher = {mathdoc},
     volume = {254},
     number = {5},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1980_254_5_a0/}
}