@article{DE_1994_30_9_a4,
     author = {V. A. Il'in},
     title = {On a connection between the form of the boundary conditions and the basis property and the property of equiconvergence with a trigonometric series of expansions in root functions of a nonselfadjoint differential operator},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1516--1529},
     publisher = {mathdoc},
     volume = {30},
     number = {9},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1994_30_9_a4/}
}