@article{DAN_1997_353_2_a6,
     author = {V. N. Bukov and I. M. Maksimenko},
     title = {Sufficiency of functional control},
     journal = {Doklady Akademii Nauk},
     pages = {170--172},
     publisher = {mathdoc},
     volume = {353},
     number = {2},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1997_353_2_a6/}
}