@book{45798,
	author = {Engel, Josef [Redakt.] and Engel, Josef [Bearb.]},
	title = {Teil 2. Mittelalter [Hauptbd.]},
	publisher = {Bayerischer Schulbuch-Verl.},
	year = {1979},
	address = {München},
	edition = {2., überarb. Aufl.}
}