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\bibitem{Buffiere_etal2014} {\textquotedblleft}\textit{Spectral current-voltage analysis of kesterite solar cells}{\textquotedblright}. Buffi{\`e}re M, Brammertz G, Oueslati S, El Anzeery H, Bekaert J, Ben Messaoud K, K{\"o}ble C, Khelifi S, Meuris M, Poortmans J, Journal Of Physics D-Applied Physics \textbf{47}, 175101 (2014).   http://doi.org/10.1088/0022-3727/47/17/175101

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