@book{63225,
	author = {Halbertal, Moshe. and ebrary, Inc.},
	title = {Concealment and revelation},
	publisher = {Princeton University Press,},
	year = {c2007.},
	address = {Princeton, N. J. :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10312434}
}