@book{12012,
	author = {Xin, Yan Ping. and ebrary, Inc.},
	title = {Conceptual model-based problem solving},
	publisher = {Sense Publishers,},
	year = {c2012.},
	address = {Rotterdam ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10687694}
}