@article{MZM_2018_104_3_a4,
     author = {S. M. Grudsky and A. V. Rybkin},
     title = {On the {Trace-Class} {Property} of {Hankel} {Operators} {Arising} in the {Theory} of the {Korteweg--de} {Vries} {Equation}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {374--395},
     publisher = {mathdoc},
     volume = {104},
     number = {3},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2018_104_3_a4/}
}