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\bibitem{Dixit_etal2011} {\textquotedblleft}\textit{Electronic structure and band gap of zinc spinel oxides beyond LDA : ZnAl$_{2}$O$_{4}$, ZnGa$_{2}$O$_{4}$ and ZnIn$_{2}$O$_{4}$}{\textquotedblright}. Dixit H, Tandon N, Cottenier S, Saniz R, Lamoen D, Partoens B, van Speybroeck V, Waroquier M, New journal of physics \textbf{13}, 063002 (2011).   http://doi.org/10.1088/1367-2630/13/6/063002

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