@book{32993,
	author = {Wen, Guo Chun. and ebrary, Inc.},
	title = {Elliptic, hyperbolic and mixed complex equations with parabolic degeneracy},
	publisher = {World Scientific,},
	year = {c2008.},
	series = {Peking University series in mathematics ;},
	address = {Singapore ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10255435}
}