@article{SM_1982_42_1_a1,
     author = {O. V. Epifanov},
     title = {A~differential operator with polinomial coefficiens in classes of entire functions with a~given estimate of the indicator},
     journal = {Sbornik. Mathematics},
     pages = {71--92},
     publisher = {mathdoc},
     volume = {42},
     number = {1},
     year = {1982},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1982_42_1_a1/}
}