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\bibitem{Kovnir_etal2006} {\textquotedblleft}\textit{Ge$_{40.0}$Te$_{5.3}$I$_{8}$: synthesis, crystal structure, and properties of a new clathrate-I compound}{\textquotedblright}. Kovnir KA, Abramchuk NS, Zaikina JV, Baitinger M, Burkhardt U, Schnelle W, Olenev AV, Lebedev OI, Van Tendeloo G, Dikarev EV, Shevelkov AV, Zeitschrift f{\"u}r Kristallographie \textbf{221}, 527 (2006).   http://doi.org/10.1524/zkri.2006.221.5-7.527

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