@article{DE_1994_30_12_a4,
     author = {A. A. Malov},
     title = {Some properties of the root functions of an even-order ordinary differential operator},
     journal = {Differencialʹnye uravneni\^a},
     pages = {2064--2070},
     publisher = {mathdoc},
     volume = {30},
     number = {12},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1994_30_12_a4/}
}