@article{ZNSL_2019_480_a8,
     author = {L. N. Ikhsanov},
     title = {Estimates of approximation by {Kantorovich} type operators in terms of the second modulus of continuity},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {122--147},
     year = {2019},
     volume = {480},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2019_480_a8/}
}