@book{247775,
	author = {Powers, David L. and ebrary, Inc.},
	title = {Boundary value problems},
	publisher = {Elsevier Academic Press,},
	year = {c2006.},
	address = {Amsterdam ;},
	edition = {5th ed.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10167083}
}