@book{7868,
	author = {Balard, Michel and Malamut, Élisabeth},
	title = {Byzance et le monde extérieur :},
	publisher = {Éditions de la Sorbonne,},
	year = {2016.},
	address = {Paris :},
	note = {Ebook},
	url = {https://books.openedition.org/psorbonne/1829}
}