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@article{DAN_1971_200_5_a9, author = {V. V. Velichenko}, title = {Structure, controllability, and synthesis of invariant systems}, journal = {Doklady Akademii Nauk}, pages = {1044--1047}, publisher = {mathdoc}, volume = {200}, number = {5}, year = {1971}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1971_200_5_a9/} }
V. V. Velichenko. Structure, controllability, and synthesis of invariant systems. Doklady Akademii Nauk, Tome 200 (1971) no. 5, pp. 1044-1047. http://geodesic.mathdoc.fr/item/DAN_1971_200_5_a9/