@inbook { kerres_online-_2,
	title = {Online- und Pr{\"a}senzelemente in hybriden Lernarrangements kombinieren},
	booktitle = {Handbuch E-Learning},
	year = {2002},
	publisher = {Deutscher Wirtschaftsdienst},
	organization = {Deutscher Wirtschaftsdienst},
	chapter = {Abschnitt 4.5},
	address = {K{\"o}ln},
	author = {Michael Kerres},
	editor = {Hohenstein, Andreas and Karl Wilbers}
}
