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@article{DE_1973_9_12_a29, author = {B. Sh. Shklyar}, title = {The minimal number of inputs of a controllable system}, journal = {Differencialʹnye uravneni\^a}, pages = {2284}, publisher = {mathdoc}, volume = {9}, number = {12}, year = {1973}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1973_9_12_a29/} }
B. Sh. Shklyar. The minimal number of inputs of a controllable system. Differencialʹnye uravneniâ, Tome 9 (1973) no. 12. http://geodesic.mathdoc.fr/item/DE_1973_9_12_a29/