@book{25264,
	author = {Barrows, Howard S., and Tamblyn, Robyn M. and ebrary, Inc.},
	title = {Problem-based learning},
	publisher = {Springer Pub. Co.,},
	year = {c1980.},
	series = {Springer series on medical education ;},
	address = {New York :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10265607}
}