@article {ettouney1973courtyard,
	title = {Courtyard acoustics},
	journal = {Applied Acoustics},
	volume = {6},
	number = {2},
	year = {1973},
	note = {n/a},
	pages = {119{\textendash}132},
	publisher = {Elsevier},
	abstract = {n/a},
	author = {Ettouney, Sayed M and Fricke, Fergus R}
}
