@article{ZNSL_1981_110_a7,
     author = {A. A. Laptev},
     title = {On the estimates for singular values of the integral operators of certain class},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {95--99},
     publisher = {mathdoc},
     volume = {110},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1981_110_a7/}
}