@conference {722,
	title = {Schriftlichkeit, M{\"u}ndlichkeit und Neue Medien},
	booktitle = {Jahrestagung der Gesellschaft f{\"u}r Didaktik der Mathematik},
	year = {2011},
	publisher = {WTM-Verlag},
	organization = {WTM-Verlag},
	address = {Freiburg},
	author = {Schreiber, Christof}
}
