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\bibitem{Hervieu_etal1997} {\textquotedblleft}\textit{Structural phase transition in the manganite Nd$_{0.5}$Ca$_{0.2}$Sr$_{0.3}$MnO$_{3-\delta}$}{\textquotedblright}. Hervieu M, Van Tendeloo G, Schuddinck W, Richard O, Caignaert V, Millange F, Raveau B, Journal of electron microscopy \textbf{46}, 263 (1997)

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