@book{57393,
	author = {Pirenne, Henri },
	title = {Mohammed And Charlemagne /},
	publisher = {George Allen & Unwin Ltd,},
	year = {1954.},
	address = { London :},
	note = {Includes index.
},
	url = {https://fll.law.cu.edu.eg/fulltext/bks/B11-06977.pdf}
}