@book{49107,
	author = {Alr�, Helle. and Skovsmose, Ole. and ebrary, Inc.},
	title = {Dialogue and learning in mathematics education},
	publisher = {Kluwer Academic,},
	year = {c2002.},
	series = {Mathematics education library ;},
	address = {Dordrecht ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10067362}
}