%0 Journal Article %A V. V. Ivanov %A A. È. Vuginshteyn %T Continual models of developing systems %J Differencialʹnye uravneniâ %D 1985 %P 473-484 %V 21 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1985_21_3_a13/ %G ru %F DE_1985_21_3_a13