@article{DVMG_2021_21_1_a5,
     author = {M. R. Langarshoev},
     title = {On the value of the widths of some classes of functions from $L_{2}$},
     journal = {Dalʹnevosto\v{c}nyj matemati\v{c}eskij \v{z}urnal},
     pages = {61--70},
     publisher = {mathdoc},
     volume = {21},
     number = {1},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DVMG_2021_21_1_a5/}
}