@inbook { 6031,
	title = {Microlearning as a challenge to instructional design},
	booktitle = {Didactics of Microlearning},
	year = {2007},
	publisher = {Waxmann},
	organization = {Waxmann},
	address = {M{\"u}nster},
	author = {Michael Kerres},
	editor = {Hug, Theo and Lindner, Martin}
}
