@book {Wellesz1961,
	title = {A History of Byzantine Music and Hymnography.},
	year = {1961},
	publisher = {Clarendon Press},
	organization = {Clarendon Press},
	edition = {2},
	address = {Oxford},
	author = {Wellesz, Egon}
}
@book {Wellesz1927,
	title = {Byzantinische Musik },
	year = {1927},
	pages = {96},
	publisher = {Ferdinand Hirt},
	organization = {Ferdinand Hirt},
	address = {Breslau},
	author = {Wellesz, Egon}
}
