@article{MZM_1987_42_3_a6,
     author = {Kh. M. Karov},
     title = {Hausdorff--Young inequality for the eigenfunctions and associated functions of a differential operator of second order},
     journal = {Matemati\v{c}eskie zametki},
     pages = {411--421},
     publisher = {mathdoc},
     volume = {42},
     number = {3},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1987_42_3_a6/}
}