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@article{DE_1982_18_2_a5, author = {A. M. Zverkin and V. N. Rozova}, title = {On the structure of a region of controllability}, journal = {Differencialʹnye uravneni\^a}, pages = {234--239}, publisher = {mathdoc}, volume = {18}, number = {2}, year = {1982}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1982_18_2_a5/} }
A. M. Zverkin; V. N. Rozova. On the structure of a region of controllability. Differencialʹnye uravneniâ, Tome 18 (1982) no. 2, pp. 234-239. http://geodesic.mathdoc.fr/item/DE_1982_18_2_a5/