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\bibitem{Hervieu_etal1996} {\textquotedblleft}\textit{Mixed layers in copper based superconducting materials}{\textquotedblright}. Hervieu, Van Tendeloo G, Michel, Pelloquin, Raveau, Microscopy, microanalysis, microstructures \textbf{7}, 107 (1996).   http://doi.org/10.1051/mmm:1996109

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