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\bibitem{Shetty_etal2017} {\textquotedblleft}\textit{Existence of Ti$^{2+}$States on the Surface of Heavily Reduced SrTiO$_{3}$Nanocubes}{\textquotedblright}. Shetty S, Sinha SK, Ahmad R, Singh AK, Van Tendeloo G, Ravishankar N, Chemistry of materials , acs.chemmater.7b04113 (2017).   http://doi.org/10.1021/acs.chemmater.7b04113

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