@article {zaki2003gbf,
	title = {GBF: a grammar based filter for Internet applications},
	journal = {Journal of network and computer applications},
	volume = {26},
	number = {3},
	year = {2003},
	note = {n/a},
	pages = {229{\textendash}257},
	publisher = {Elsevier},
	abstract = {n/a},
	author = {Zaki, Mohammed and M.G. Darwish and Osman, G}
}
