%0 Journal Article %A Bourdache-Siguerdidjane, Houria %T On the characteristic modes of a rigid body under forces %J Kybernetika %D 1994 %P 489-497 %V 30 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_1994__30_5_a1/ %G en %F KYB_1994__30_5_a1