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\bibitem{Sankaran_etal2016} Sankaran KJ, Hoang DQ, Srinivasu K, Korneychuk S, Turner S, Drijkoningen S, Pobedinskas P, Verbeeck J, Leou KC, Lin IN, Haenen K, Physica status solidi : A : applications and materials science \textbf{213}, 2654 (2016).   http://doi.org/10.1002/PSSA.201600233

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