@article{FAA_1990_24_4_a14,
     author = {S. N. Naboko and S. I. Yakovlev},
     title = {Conditions for the finiteness of the singular spectrum in the self-adjoint friedrichs model},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {88--89},
     publisher = {mathdoc},
     volume = {24},
     number = {4},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1990_24_4_a14/}
}