@article {grace2012oscillation,
	title = {On the oscillation of fourth order nonlinear dynamic equations},
	journal = {Journal of Advanced Mathematical Studies},
	volume = {5},
	number = {1},
	year = {2012},
	note = {n/a},
	pages = {1{\textendash}11},
	publisher = {Fair Partners Team for the Promotion of Science},
	abstract = {n/a},
	author = {Said R. Grace and Agarwal, Ravi P and O{\textquoteright}regan, Donal}
}
