@article{IM2_1989_33_2_a4,
     author = {S. N. Melikhov},
     title = {On~expansion of analytic functions in exponential series},
     journal = {Izvestiya. Mathematics },
     pages = {317--329},
     publisher = {mathdoc},
     volume = {33},
     number = {2},
     year = {1989},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1989_33_2_a4/}
}