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\bibitem{Weill_etal1993} {\textquotedblleft}\textit{Electron-microscopy investigation of superconducting la2cu(o, f)4+y oxyfluoride}{\textquotedblright}. Weill, Chevalier, Chambon, Tressaud, Darriet, Etourneau, Van Tendeloo G, European journal of solid state and inorganic chemistry \textbf{30}, 1095 (1993)

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