@book{231624,
	author = {Zeller, Andreas. and Ebrary inc.},
	title = {Why programs fail},
	publisher = {Elsevier/Morgan Kaufmann},
	year = {c2009.},
	address = {Amsterdam},
	edition = {2nd ed.},
	url = {http://site.ebrary.com/lib/pucpr/docDetail.action?docID=10310734}
}