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\bibitem{Yuan_etal2018} {\textquotedblleft}\textit{Imaging heterogeneously distributed photo-active traps in perovskite single crystals}{\textquotedblright}. Yuan H, Debroye E, Bladt E, Lu G, Keshavarz M, Janssen KPF, Roeffaers MBJ, Bals S, Sargent EH, Hofkens J, Advanced materials \textbf{30}, 1705494 (2018).   http://doi.org/10.1002/ADMA.201705494

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