@article {agarwal1999oscillation,
	title = {Oscillation of certain systems of functional differential equations},
	journal = {DYNAMIC SYSTEMS AND APPLICATIONS},
	volume = {8},
	year = {1999},
	note = {n/a},
	pages = {45{\textendash}52},
	publisher = {DYNAMIC PUBLISHERS ATLANTA},
	abstract = {n/a},
	author = {Agarwal, RP and Grace, SR}
}
