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@article{DE_1975_11_5_a15, author = {N. A. Bodunov}, title = {Manifolds of $0$-curves of multidimensional systems}, journal = {Differencialʹnye uravneni\^a}, pages = {914--917}, publisher = {mathdoc}, volume = {11}, number = {5}, year = {1975}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1975_11_5_a15/} }
N. A. Bodunov. Manifolds of $0$-curves of multidimensional systems. Differencialʹnye uravneniâ, Tome 11 (1975) no. 5, pp. 914-917. http://geodesic.mathdoc.fr/item/DE_1975_11_5_a15/