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\bibitem{Paul_etal2020} {\textquotedblleft}\textit{Manganese-Doping-Induced Quantum Confinement within Host Perovskite Nanocrystals through Ruddlesden{\textendash}Popper Defects}{\textquotedblright}. Paul S, Bladt E, Richter AF, D{\"o}blinger M, Tong Y, Huang H, Dey A, Bals S, Debnath T, Polavarapu L, Feldmann J, Angewandte Chemie-International Edition \textbf{59}, 6794 (2020).   http://doi.org/10.1002/anie.201914473

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