@conference {71081,
	title = {Comparative Study of Air Distribution systems in Offices: Species concentration, },
	booktitle = {AIAA-2012-0642, Nashville, January 2012 },
	year = {2012},
	month = {January },
	address = {USA},
	author = {Essam E. Khalil and mahmoud A Fouad and George S Younas}
}
