%0 Journal Article %A Miroslav Vesković %A Vukman Čović %T On the instability of equilibrium of a mechanical system with nonconservative forces %J Theoretical and applied mechanics %D 2004 %P 411 - 424 %V 31 %N 3-4 %I mathdoc %U http://geodesic.mathdoc.fr/item/TAM_2004_31_3-4_a9/ %F TAM_2004_31_3-4_a9