@article{MZM_2020_108_6_a2,
     author = {Yu. N. Zakharyan and T. N. Fomenko},
     title = {Preservation of the {Existence} of {Zeros} in a {Family} of {Set-Valued} {Functionals} and {Some} {Consequences}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {837--850},
     publisher = {mathdoc},
     volume = {108},
     number = {6},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2020_108_6_a2/}
}