%0 Journal Article %A L. I. Rodina %T Profit maximization problems in various economic models %J Matematičeskoe obrazovanie %D 2021 %P 44-49 %V 98 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MO_2021_98_2_a5/ %G ru %F MO_2021_98_2_a5