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\bibitem{Matsubara_etal2017} {\textquotedblleft}\textit{Doping anatase TiO$_{2}$with group V-b and VI-b transition metal atoms: a hybrid functional first-principles study}{\textquotedblright}. Matsubara M, Saniz R, Partoens B, Lamoen D, Physical chemistry, chemical physics \textbf{19}, 1945 (2017).   http://doi.org/10.1039/C6CP06882K

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