%0 Journal Article %A O. V. Fel'dman %T Flow models of agricultural systems %J Matematičeskoe modelirovanie %D 1999 %P 31-48 %V 11 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM_1999_11_10_a2/ %G ru %F MM_1999_11_10_a2