@article{MZM_1972_11_6_a0,
     author = {A. Z. Grinshpan},
     title = {The application of the area principle to the {Bieberbach{\textendash}Eilenberg} functions},
     journal = {Matemati\v{c}eskie zametki},
     pages = {609--618},
     year = {1972},
     volume = {11},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1972_11_6_a0/}
}