@article{DAN_1975_223_3_a7,
     author = {V. A. Il'in},
     title = {On uniform equiconvergence of expansions in eigen and associated functions of a non-selfadjoint ordinary differential operator and in trigonometric {Fourier} series},
     journal = {Doklady Akademii Nauk},
     pages = {548--551},
     publisher = {mathdoc},
     volume = {223},
     number = {3},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1975_223_3_a7/}
}