@article{IIMI_2022_60_a6,
     author = {V. N. Ushakov and A. V. Ushakov},
     title = {On the approach problem for a control system on a finite time interval},
     journal = {Izvestiya Instituta Matematiki i Informatiki Udmurtskogo Gosudarstvennogo Universiteta},
     pages = {111--154},
     publisher = {mathdoc},
     volume = {60},
     year = {2022},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IIMI_2022_60_a6/}
}