@article{MZM_2019_106_2_a2,
     author = {L. Burusheva},
     title = {The {Steiner} {Subratio} in {Banach} {Spaces}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {188--197},
     publisher = {mathdoc},
     volume = {106},
     number = {2},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2019_106_2_a2/}
}