@article {grace2002oscillation,
	title = {Oscillation of nth Order Forced Functional Differential Equations},
	journal = {Mathematische Nachrichten},
	volume = {238},
	number = {1},
	year = {2002},
	note = {n/a},
	pages = {103{\textendash}112},
	publisher = {Wiley Online Library},
	abstract = {n/a},
	author = {Grace, SR and Hamedani, GG}
}
