@conference {72063,
	title = {Life Cycle Cost Analyses Of Air-Conditioning Systems in Commercial Buildings in Egypt, },
	booktitle = {Invited Paper, Proceedings, 39th International Congress on Heating, Refrigerating \& Air-Conditioning, Belgrade, December 2008},
	year = {2008},
	month = {December},
	address = {Serbia},
	author = {Essam E. Khalil}
}
