@article{DE_1987_23_1_a18,
     author = {Kh. M. Karov},
     title = {On an inverse {Hausdorff{\textendash}Young} inequality for eigen- and associated functions of the {Sturm{\textendash}Liouville} operator with discontinuous coefficients},
     journal = {Differencialʹnye uravneni\^a},
     pages = {172--174},
     year = {1987},
     volume = {23},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1987_23_1_a18/}
}