@conference {friedlmeier1997heterojunctions,
	title = {Heterojunctions based on Cu2ZnSnS4 and Cu2ZnSnSe4 thin films},
	booktitle = {14th European PVSEC},
	year = {1997},
	author = {Friedlmeier, Th Magorian and Wieser, N and Walter, Th and Dittrich, H and Schock, HW}
}
