@article {jackson2016effects,
	title = {Effects of heavy alkali elements in Cu (In, Ga) Se<sub>2</sub> solar cells with efficiencies up to 22.6\%},
	journal = {physica status solidi (RRL){\textendash}Rapid Research Letters},
	volume = {10},
	year = {2016},
	pages = {583{\textendash}586},
	author = {Jackson, Philip and Wuerz, Roland and Hariskos, Dimitrios and Lotter, Erwin and Witte, Wolfram and Powalla, Michael}
}
