@mastersthesis{publication-2841,
	author={à Porta, Michael},
	editor={Schauer, Helmut and Huber, Andreas},
	faculty={Faculty of Economics, Business Administration and Information Technology},
	institution={University of Zurich},
	title={Erweiterung der Lektionsbeurteilung in der MIO-Lernumgebung},
	year=2007,
}