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\bibitem{Potapov_etal2004} {\textquotedblleft}\textit{Effect of charge transfer on EELS integrated cross sections in Mn and Ti oxides}{\textquotedblright}. Potapov PL, Jorissen K, Schryvers D, Lamoen D, Physical review : B : condensed matter and materials physics \textbf{70}, 045106 (2004).   http://doi.org/10.1103/PhysRevB.70.045106

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