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\bibitem{Lu_etal2020} {\textquotedblleft}\textit{Interfacial co-existence of oxygen and titanium vacancies in nanostructured TiO$_{2}$ for enhancement of carrier transport}{\textquotedblright}. Lu Y, Liu Y-X, He L, Wang L-Y, Liu X-L, Liu J-W, Li Y-Z, Tian G, Zhao H, Yang X-H, Liu J, Janiak C, Lenaerts S, Yang X-Y, Su B-L, Nanoscale \textbf{12}, 8364 (2020).   http://doi.org/10.1039/D0NR01180K

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