@booklet {20010,
	title = {Organo Metal Halide Perovskite Heterojunction Solar Cell and Fabrication Thereof},
	volume = {WO 2014/020499 Al},
	year = {2014},
	edition = {WIPO (World Intellectual Prop Org)},
	chapter = {WO},
	author = {Etgar Lioz and Md K. Nazeeruddin and Michael Gr{\"a}tzel}
}
