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\bibitem{Abakumov_etal2011} {\textquotedblleft}\textit{Antiferroelectric (Pb,Bi)$_{1-x}$Fe$_{1+x}$O$_{3-y}$ perovskites modulated by crystallographic shear planes}{\textquotedblright}. Abakumov AM, Batuk D, Hadermann J, Rozova MG, Sheptyakov DV, Tsirlin AA, Niermann D, Waschowski F, Hemberger J, Van Tendeloo G, Antipov EV, Chemistry of materials \textbf{23}, 255 (2011).   http://doi.org/10.1021/cm102907h

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