@book{10089,
	author = {Shvar�t�sburg, A. B. and Maradudin, Alexei A., and ebrary, Inc.},
	title = {Waves in gradient metamaterials},
	publisher = {World Scientific,},
	year = {c2013.},
	address = {[Hackensack] N.J. :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10691865}
}