@article {barakat2013mail,
	title = {E-mail Subscription},
	journal = {ETRI Journal},
	volume = {35},
	number = {3},
	year = {2013},
	note = {n/a},
	pages = {448{\textendash}458},
	abstract = {n/a},
	author = {Barakat, Mohamed L and Mansingka, Abhinav S and Radwan, Ahmed G and Salama, Khaled N}
}
