@article{VTAMU_2018_23_122_a22,
     author = {S. P. Zubova and E. V. Raetskaya},
     title = {The study of a singularly perturbed control system},
     journal = {Vestnik rossijskih universitetov. Matematika},
     pages = {303--308},
     publisher = {mathdoc},
     volume = {23},
     number = {122},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VTAMU_2018_23_122_a22/}
}