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\bibitem{Wu_etal2013} {\textquotedblleft}\textit{Nonvolatile resistive switching in Pt/LaAlO$_{3}$/SrTiO$_{3}$ heterostructures}{\textquotedblright}.  Wu S, Luo X, Turner S, Peng H, Lin W, Ding J, David A, Wang B, Van Tendeloo G, Wang J, Wu T;, Physical review X \textbf{3}, 041027 (2013).   http://doi.org/10.1103/PhysRevX.3.041027

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