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  Schubert, B.-A.; Marsen, B.; Cinque,S.; Unold, T.; Klenk, R.; Schorr, S.; Schock, H.-W.: Cu₂ZnSnS₄ thin film solar cells by fast coevaporation. Progress in Photovoltaics 19 (2011), p. 93-96

10.1002/pip.976

Abstract:
Cu2ZnSnS4 Thin Film Solar Cells by Fast Coevaporation