@article{DE_1976_12_4_a2,
     author = {I. A. Aleksandrov and G. G. Zavozin and S. A. Kopanev},
     title = {Optimal controls in coefficient problems for univalent functions},
     journal = {Differencialʹnye uravneni\^a},
     pages = {599--611},
     publisher = {mathdoc},
     volume = {12},
     number = {4},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1976_12_4_a2/}
}