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\bibitem{Li_etal2005} {\textquotedblleft}\textit{Interplay of doping and structural modulation in superconducting Bi$_{2}$Sr$_{2-x}$La$_{x}$CuO$_{6+\delta}$ thin films}{\textquotedblright}. Li ZZ, Raffy H, Bals S, Van Tendeloo G, Megtert S, Physical review : B : condensed matter and materials physics \textbf{71}, 174503 (2005).   http://doi.org/10.1103/PhysRevB.71.174503

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