@article {218939,
	title = {Discrete semipositone higher-order equations},
	journal = {Computers \& Mathematics with Applications},
	volume = {45},
	year = {2003},
	note = {n/a},
	pages = {1171-1179},
	publisher = {Pergamon},
	abstract = {n/a},
	isbn = {0898-1221},
	author = {Agarwal, RP and Grace, SR and O{\textquoteright}Regan, D}
}
