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\bibitem{Sarmadian_etal2016} {\textquotedblleft}\textit{Easily doped p-type, low hole effective mass, transparent oxides}{\textquotedblright}. Sarmadian N, Saniz R, Partoens B, Lamoen D, Scientific reports \textbf{6}, 20446 (2016).   http://doi.org/10.1038/srep20446

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