@article{CHEB_2023_24_4_a22,
     author = {Yu. N. Shteynikov},
     title = {On the extremal set of quotient of natural numbers},
     journal = {\v{C}eby\v{s}evskij sbornik},
     pages = {354--360},
     publisher = {mathdoc},
     volume = {24},
     number = {4},
     year = {2023},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CHEB_2023_24_4_a22/}
}