@article{TMF_2021_209_3_a8,
     author = {A. V. Pereskokov},
     title = {Asymptotics of the~spectrum of a {Hartree-type} operator with a~screened {Coulomb} self-action potential near the~upper boundaries of spectral clusters},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {543--560},
     publisher = {mathdoc},
     volume = {209},
     number = {3},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2021_209_3_a8/}
}