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\bibitem{Mattauch_etal2004} {\textquotedblleft}\textit{High resolution neutron and X-ray diffraction studies as a function of temperature and electric field of the ferroelectric phase transition of RDP}{\textquotedblright}. Mattauch S, Heger G, Michel KH, Crystal research and technology \textbf{39}, 1027 (2004).   http://doi.org/10.1002/crat.200410289

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