@inbook { kerres_technisch,
	title = {Technische Aspekte multi- und telemedialer Lernangebote},
	booktitle = {Information und Lernen mit Multimedia und Internet},
	year = {2002},
	publisher = {Beltz},
	organization = {Beltz},
	address = {Weinheim},
	author = {Michael Kerres},
	editor = {Issing, Ludwig J. and Klimsa, Paul}
}
