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@article{DE_1972_8_5_a4, author = {I. V. Kamenev}, title = {An integral comparison theorem for certain systems of linear differential equations}, journal = {Differencialʹnye uravneni\^a}, pages = {778--784}, publisher = {mathdoc}, volume = {8}, number = {5}, year = {1972}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1972_8_5_a4/} }
I. V. Kamenev. An integral comparison theorem for certain systems of linear differential equations. Differencialʹnye uravneniâ, Tome 8 (1972) no. 5, pp. 778-784. http://geodesic.mathdoc.fr/item/DE_1972_8_5_a4/