@article{TIMM_2000_6_1_a9,
     author = {M. S. Nikol'skii and M. Aboubacar},
     title = {Some estimates of the reachable set for the controlled van der {Pol} equation},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {150--159},
     publisher = {mathdoc},
     volume = {6},
     number = {1},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2000_6_1_a9/}
}