%0 Journal Article %A Qi-gui Yang %A Sui Sun Cheng %T Kamenev type oscillation criteria for second order matrix differential systems with damping %J Annales Polonici Mathematici %D 2005 %P 145-152 %V 85 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap85-2-4/ %R 10.4064/ap85-2-4 %G en %F 10_4064_ap85_2_4