%0 Journal Article %A M. U. Akhmetov %A N. A. Perestyuk %T Differential properties of solutions and integral surfaces of nonlinear impulse systems %J Differencialʹnye uravneniâ %D 1992 %P 555-566 %V 28 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1992_28_4_a0/ %G ru %F DE_1992_28_4_a0