@book{47935,
	author = {Gregorovius, Ferdinand Adolf and Morrison, Karl Frederick},
	title = {Rome and medieval culture},
	publisher = {University of Chicago Press},
	year = {[1971]},
	series = {Classic European historians},
	address = {Chicago},
	note = {Translation of Geschichte der Stadt Rom im Mittelalter, v. 1-3 and pts. 1-2 of v. 4-8.}
}