%0 Journal Article %A L. I. Rodina %A A. V. Chernikova %T On the properties of systems of differential equations and problems of optimal resource extraction %J Matematičeskoe obrazovanie %D 2024 %P 31-45 %V 111 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/MO_2024_111_3_a4/ %G ru %F MO_2024_111_3_a4