@article{DE_1994_30_1_a7,
     author = {A. M. Sedletskii},
     title = {Expansions in eigenfunctions of the differentiation operator with spread boundary condition},
     journal = {Differencialʹnye uravneni\^a},
     pages = {70--76},
     publisher = {mathdoc},
     volume = {30},
     number = {1},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1994_30_1_a7/}
}