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\bibitem{Oezen_etal2012} {\textquotedblleft}\textit{Hydrothermal synthesis of carbonate-free submicron-sized barium titanate from an amorphous precursor : synthesis and characterization}{\textquotedblright}. {\"O}zen M, Mertens M, Luyten J, Snijkers F, d{\textquoteright} Hondt H, Cool P, Ceramics international \textbf{38}, 619 (2012).   http://doi.org/10.1016/j.ceramint.2011.07.051

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