@article{DE_1993_29_1_a18,
     author = {G. E. Shikina},
     title = {A {Hilbert-type} inequality in a system of eigen- and associated functions of an even-order differential operator},
     journal = {Differencialʹnye uravneni\^a},
     pages = {145--155},
     publisher = {mathdoc},
     volume = {29},
     number = {1},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1993_29_1_a18/}
}