@article {grace2009oscillation,
	title = {Oscillation criteria for third order nonlinear difference equations},
	journal = {Fasc. Math},
	volume = {42},
	year = {2009},
	note = {n/a},
	pages = {39{\textendash}51},
	abstract = {n/a},
	author = {Grace, SR and Agarwal, RP and Aktas, MF}
}
