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\bibitem{Lepoittevin_etal2008} {\textquotedblleft}\textit{A layered iron-rich 2234-type with a mixed valence of iron: the ferrimagnetic Tl-doped Fe$_{2}$(Sr$_{2-\varepsilon}$Tl$_{\varepsilon}$)Sr$_{3}$Fe$_{4}$O$_{14.65}$}{\textquotedblright}. Lepoittevin C, Malo S, Nguyen N, Hebert S, Van Tendeloo G, Hervieu M, Chemistry of materials \textbf{20}, 6468 (2008).   http://doi.org/10.1021/cm8014385

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