TY  - JOUR
AU  - Elabbasy, E.
TI  - Oscillation Theorems for Perturbed Second Order Nonlinear Differential Equations with Damping
JO  - Serdica Mathematical Journal
PY  - 1997
SP  - 1
EP  - 14
VL  - 23
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SMJ2_1997_23_1_a0/
LA  - en
ID  - SMJ2_1997_23_1_a0
ER  -