@article{DAN_1973_208_4_a2,
     author = {I. I. Ibragimov and V. N. Trakachev},
     title = {On an extremal problem in the class of entire functions of finite degree},
     journal = {Doklady Akademii Nauk},
     pages = {768--770},
     publisher = {mathdoc},
     volume = {208},
     number = {4},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1973_208_4_a2/}
}