@article{DAN_1963_152_5_a9,
     author = {I. I. Ibragimov},
     title = {A bound for the norm of a linear operator in the class of entire functions of finite degree},
     journal = {Doklady Akademii Nauk},
     pages = {1054--1057},
     publisher = {mathdoc},
     volume = {152},
     number = {5},
     year = {1963},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1963_152_5_a9/}
}