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@article{DE_1983_19_5_a2, author = {\`E. I. Grudo}, title = {On the theory of stability of ordinary differential systems and {Pfaffian} systems}, journal = {Differencialʹnye uravneni\^a}, pages = {782--789}, publisher = {mathdoc}, volume = {19}, number = {5}, year = {1983}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1983_19_5_a2/} }
È. I. Grudo. On the theory of stability of ordinary differential systems and Pfaffian systems. Differencialʹnye uravneniâ, Tome 19 (1983) no. 5, pp. 782-789. http://geodesic.mathdoc.fr/item/DE_1983_19_5_a2/