@book{177090,
	author = {Astala, Kari, and Iwaniec, Tadeusz. and ebrary, Inc.},
	title = {Elliptic partial differential equations and quasiconformal mappings in the plane},
	publisher = {Princeton University Press,},
	year = {c2009.},
	series = {Princeton mathematical series ;},
	address = {Princeton :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10312571}
}