@article {agarwal2003oscillation,
	title = {The oscillation of certain higher-order functional differential equations},
	journal = {Mathematical and computer modelling},
	volume = {37},
	number = {7-8},
	year = {2003},
	note = {n/a},
	pages = {705{\textendash}728},
	publisher = {Elsevier},
	abstract = {n/a},
	author = {Agarwal, Ravi P and Said R. Grace and O{\textquoteright}regan, Donal}
}
