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\bibitem{Zhang_etal1994} {\textquotedblleft}\textit{Structural aspects of Bi$_{2-x}$Pb$_{x}$Sr$_{3.5}$Cu$_{2}$(CO$_{3}$)O$_{8-\delta}$ for 0\leq x\leq0.75 : an electron-microscopy study}{\textquotedblright}. Zhang XF, Van Tendeloo G, Amelinckx S, Pelloquin D, Michel C, Hervieu M, Raveau B, Journal of solid state chemistry \textbf{113}, 327 (1994).   http://doi.org/10.1006/jssc.1994.1378

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