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\bibitem{Hadermann_etal2007} {\textquotedblleft}\textit{Synthesis and crystal structure of the Sr$_{2}$Al$_{1.07}$Mn$_{0.93}$O$_{5}$ brownmillerite}{\textquotedblright}. Hadermann J, Abakumov AM, d{\textquoteright} Hondt H, Kalyuzhnaya AS, Rozova MG, Markina MM, Mikheev MG, Tristan N, Klingeler R, B{\"u}chner B, Antipov EV, Journal of materials chemistry \textbf{17}, 692 (2007).   http://doi.org/10.1039/b614168d

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