@book { 6025,
	title = {Betreuungskonzepte beim Blended Learning. Gestaltung und Organisation tutorieller Betreuung},
	series = {Medien in der Wissenschaft},
	volume = {41},
	year = {2007},
	publisher = {Waxmann},
	organization = {Waxmann},
	address = {M{\"u}nster},
	url = {http://www.waxmann.com/index2.html?kat/reihe_49.html},
	author = {Nadine Ojstersek}
}
