@article {219179,
	title = {The oscillatory behavior of second order nonlinear functional differential equations},
	journal = {Arabian Journal for Science and Engineering},
	volume = {31},
	year = {2006},
	note = {n/a},
	pages = {23-30},
	publisher = {Citeseer},
	abstract = {n/a},
	isbn = {1319-8025},
	author = {Zayed, EME and Grace, SR and El-Metwally, H and El-Moneam, MA}
}
