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\bibitem{Moshnyaga_etal2003} {\textquotedblleft}\textit{Structural phase transition at the percolation threshold in epitaxial (La$_{0.7}$Ca$_{0.3}$MnO$_{3}$)$_{1-x}$:(MgO)$_{x}$ nanocomposite films}{\textquotedblright}. Moshnyaga V, Damaschke B, Shapoval O, Belenchuk A, Faupel J, Lebedev OI, Verbeeck J, Van Tendeloo G, M{\"u}cksch M, Tsurkan V, Tidecks R, Samwer K, Nature materials \textbf{2}, 247 (2003).   http://doi.org/10.1038/nmat859

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