@article{IM2_1981_17_3_a3,
     author = {A. F. Leont'ev},
     title = {Exponential series for functions with specified growth near the boundary},
     journal = {Izvestiya. Mathematics},
     pages = {505--521},
     year = {1981},
     volume = {17},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1981_17_3_a3/}
}