%0 Journal Article %A G. M. Vinner %T Mechanism of instability of an equilibrium of natural systems %J Funkcionalʹnyj analiz i ego priloženiâ %D 1989 %P 66-67 %V 23 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1989_23_1_a9/ %G ru %F FAA_1989_23_1_a9