@article{VUU_2011_4_a2,
     author = {V. N. Ushakov and A. R. Matviichuk and A. V. Ushakov},
     title = {Approximations of attainability sets and of integral funnels of differential inclusions},
     journal = {Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹ\^uternye nauki},
     pages = {23--39},
     publisher = {mathdoc},
     number = {4},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VUU_2011_4_a2/}
}