@article{CHEB_2020_21_2_a21,
     author = {V. V. Obukhovskii and S. V. Kornev and E. N. Getmanova},
     title = {On topological characteristics for some classes of multivalued mappings},
     journal = {\v{C}eby\v{s}evskij sbornik},
     pages = {301--319},
     publisher = {mathdoc},
     volume = {21},
     number = {2},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CHEB_2020_21_2_a21/}
}