@article{DE_1997_33_6_a7,
     author = {A. P. Krishchenko},
     title = {On the structure of attainability sets of affine systems},
     journal = {Differencialʹnye uravneni\^a},
     pages = {768--775},
     publisher = {mathdoc},
     volume = {33},
     number = {6},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1997_33_6_a7/}
}