%0 Journal Article %A Yu. A. Mitropol'skii %A C. Lila %A A. A. Martynyuk %T Some trends in V. Lakshmikantham's investigations in the theory of differential equations and their applications %J Differencialʹnye uravneniâ %D 1986 %P 555-572 %V 22 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1986_22_4_a0/ %G ru %F DE_1986_22_4_a0