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\bibitem{Sullivan_etal2013} {\textquotedblleft}\textit{Fluorine intercalation in the n=1 and n=2 layered manganites Sr$_{2}$MnO$_{3.5+x}$ and Sr$_{3}$Mn$_{2}$O$_{6}$}{\textquotedblright}. Sullivan E, Gillie LJ, Hadermann J, Greaves C, Materials research bulletin \textbf{48}, 1598 (2013).   http://doi.org/10.1016/j.materresbull.2012.12.073

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