@book{65645,
	author = {Abreu, Guida de. and ebrary, Inc.},
	title = {Transitions between contexts of mathematical practices},
	publisher = {Kluwer Academic,},
	year = {c2002.},
	series = {Mathematics education library ;},
	address = {Dordrecht ;},
	note = {Includes index.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10053386}
}