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\bibitem{Lei_etal2002} {\textquotedblleft}\textit{Microstructural investigation of BaTiO$_{3}$ thin films deposited on (001) MgO}{\textquotedblright}. Lei CH, Van Tendeloo G, Siegert M, Schubert J, Journal of materials research \textbf{17}, 1923 (2002).   http://doi.org/10.1557/JMR.2002.0285

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