@book{48190,
	author = {Baral, Chitta. and ebrary, Inc.},
	title = {Knowledge representation, reasoning, and declarative problem solving},
	publisher = {Cambridge University Press,},
	year = {2003.},
	address = {Cambridge ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10064622}
}