@article{UMJ_2021_7_1_a10,
     author = {Vladimir N. Ushakov and Aleksandr A. Ershov and Andrey V. Ushakov and Oleg A. Kuvshinov},
     title = {Control system depending on a parameter},
     journal = {Ural mathematical journal},
     pages = {120--159},
     publisher = {mathdoc},
     volume = {7},
     number = {1},
     year = {2021},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UMJ_2021_7_1_a10/}
}