TY  - JOUR
AU  - Rong-Kun Zhuang
AU  - Zheng-an Yao
TI  - Some new oscillation criteria for second order 
elliptic equations with damping
JO  - Annales Polonici Mathematici
PY  - 2005
SP  - 31
EP  - 42
VL  - 86
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/ap86-1-4/
DO  - 10.4064/ap86-1-4
LA  - en
ID  - 10_4064_ap86_1_4
ER  -