@book{119552,
	author = {Czerwik, Stefan. and ebrary, Inc.},
	title = {Functional equations and inequalities in several variables},
	publisher = {World Scientific,},
	year = {c2002.},
	address = {River Edge, N.J. :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10201249}
}