TY  - JOUR
AU  - Luo, Zhiguo
AU  - Shen, Jianhua
TI  - Oscillation and nonoscillation of neutral differential equations with positive and negative coefficients
JO  - Czechoslovak Mathematical Journal
PY  - 2004
SP  - 79
EP  - 93
VL  - 54
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMJ_2004__54_1_a6/
LA  - en
ID  - CMJ_2004__54_1_a6
ER  -