@article {219057,
	title = {Oscillation criteria for certain fourth order nonlinear difference equations},
	year = {2010},
	note = {n/a},
	publisher = {Communications in Applied Analysis},
	abstract = {n/a},
	isbn = {1083-2564},
	author = {Pinelas, Sandra and Agarwal, Ravi P and Said R. Grace}
}
