%0 Journal Article %A Veljko A. Vujičić %T Energy exchange theorems in systems with time-dependent constraints %J Theoretical and applied mechanics %D 1995 %P 105 %V 21 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TAM_1995_21_1_a9/ %G en %F TAM_1995_21_1_a9