@article{MT_2021_24_2_a2,
     author = {A. A. Kalybay},
     title = {Two-sided estimates of norms of a class of matrix operators},
     journal = {Matemati\v{c}eskie trudy},
     pages = {37--45},
     publisher = {mathdoc},
     volume = {24},
     number = {2},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MT_2021_24_2_a2/}
}