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\bibitem{Lemmens_etal2003} {\textquotedblleft}\textit{Transmission electron microscopy study of polymorphism in barium gallate BaGa$_{2}$O$_{4}$}{\textquotedblright}. Lemmens H, Amelinckx S, Van Tendeloo G, Abakumov AM, Rozova MG, Antipov EV, Phase transitions \textbf{76}, 653 (2003).   http://doi.org/10.1080/0141159021000051055

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