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@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/} }
Balachandran, Krishnan. Controllability of a class of perturbed nonlinear systems. Kybernetika, Tome 24 (1988) no. 1, pp. 61-64. http://geodesic.mathdoc.fr/item/KYB_1988__24_1_a6/