@article{TRSPY_1999_224_a16,
     author = {M. S. Nikol'skii},
     title = {Certain {Covering} {Theorems} and {Their} {Application} in {Control} {Theory}},
     journal = {Informatics and Automation},
     pages = {264--274},
     publisher = {mathdoc},
     volume = {224},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1999_224_a16/}
}