@article {218998,
	title = {Oscillation of Some Fourth-Order Difference Equations},
	year = {2011},
	note = {n/a},
	publisher = {International Journal of Difference Equations},
	abstract = {n/a},
	isbn = {0973-6069},
	author = {Pinelas, Sandra and Said R. Grace and Argawal, Ravi P and Martin Bohner}
}
