@article {101,
	title = {Steady State Analysis for Firewall System},
	journal = {Scientific Bulletin (Part II Electronic Engineering) Ain Shams Faculty of Engineering Journal,},
	volume = {39},
	year = {2004},
	pages = {511-526},
	author = {Sherif Sobhi and Reda H. Serig and Hesham N. Elmahdy and Sanaa E. Hanafy}
}
