@conference {71206,
	title = {Life Cycle Cost Analyses Of Air-Conditioning Systems In Commercial Buildings In Egypt{\textquotedblright}, Invited Paper,},
	booktitle = { Proceedings, 39th International Congress On Heating, Refrigerating \& Air-Conditioning, Belgrade, December 2008},
	year = {2009},
	month = {December},
	address = {Serbia},
	author = {Essam E. Khalil}
}
