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\bibitem{Verbist_etal1997} {\textquotedblleft}\textit{Molecular beam epitaxy and microstructural study of La$_{2-x}$Sr$_{1+x}$Cu$_{2}$O$_{6+y}$ thin films}{\textquotedblright}. Verbist K, Milat O, Van Tendeloo G, Arrouy F, Williams EJ, Rossel C, Machler E, Locquet J-P, Physical review : B : condensed matter and materials physics \textbf{56}, 853 (1997)

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