@article{DE_1993_29_1_a11,
     author = {A. A. Malov},
     title = {Necessary conditions for satisfying a {Hilbert-type} inequality for an arbitrary radial function in a system of eigenfunctions of the {Laplace} operator},
     journal = {Differencialʹnye uravneni\^a},
     pages = {87--94},
     publisher = {mathdoc},
     volume = {29},
     number = {1},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1993_29_1_a11/}
}