%0 Journal Article %A A. È. Vuginshteyn %A V. V. Ivanov %T Analytic investigation of continuous models of developing systems %J Doklady Akademii Nauk %D 1983 %P 265-270 %V 273 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1983_273_2_a0/ %G ru %F DAN_1983_273_2_a0