%0 Journal Article %A A. I. Abakumov %T Populations optimal harvest (time continuous models) %J Matematičeskoe modelirovanie %D 1993 %P 41-52 %V 5 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM_1993_5_11_a2/ %G ru %F MM_1993_5_11_a2