TY  - JOUR
AU  - Qi-gui Yang
AU  - Sui Sun Cheng
TI  - Kamenev type oscillation criteria for second
 order matrix differential systems with damping
JO  - Annales Polonici Mathematici
PY  - 2005
SP  - 145
EP  - 152
VL  - 85
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/ap85-2-4/
DO  - 10.4064/ap85-2-4
LA  - en
ID  - 10_4064_ap85_2_4
ER  -