%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 %V 31 %N 3-4 %U http://geodesic.mathdoc.fr/articles/10.2298/TAM0404411V/ %R 10.2298/TAM0404411V %G en %F 10_2298_TAM0404411V