@article{KYB_1988__24_1_a6,
     author = {Balachandran, Krishnan},
     title = {Controllability of a class of perturbed nonlinear systems},
     journal = {Kybernetika},
     pages = {61--64},
     publisher = {mathdoc},
     volume = {24},
     number = {1},
     year = {1988},
     mrnumber = {936555},
     zbl = {0637.93011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1988__24_1_a6/}
}