@book{116997,
	author = {Savin-Baden, Maggi, and ebrary, Inc.},
	title = {Problem-based learning online},
	publisher = {Open University Press,},
	year = {2006.},
	address = {Maidenhead :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10197020}
}