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\bibitem{Kirsanova_etal2011} {\textquotedblleft}\textit{Semiclathrates of the GePTe system : synthesis and crystal structures}{\textquotedblright}. Kirsanova MA, Reshetova LN, Olenev AV, Abakumov AM, Shevelkov AV, Chemistry: a European journal \textbf{17}, 5719 (2011).   http://doi.org/10.1002/chem.201003553

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