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\bibitem{Saniz_etal2017} {\textquotedblleft}\textit{Structural and electronic properties of defects at grain boundaries in CuInSe$_{2}$}{\textquotedblright}. Saniz R, Bekaert J, Partoens B, Lamoen D, Physical chemistry, chemical physics \textbf{19}, 14770 (2017).   http://doi.org/10.1039/C7CP02033C

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