@article{TIMM_2013_19_4_a7,
     author = {M. I. Gusev},
     title = {Internal approximations of reachable sets of control systems with state constraints},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {73--88},
     year = {2013},
     volume = {19},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2013_19_4_a7/}
}