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\bibitem{DeKeukeleere_etal2016} {\textquotedblleft}\textit{Superconducting YBa$_{2}$Cu$_{3}$O$_{7-δ}$Nanocomposites Using Preformed ZrO$_{2}$Nanocrystals: Growth Mechanisms and Vortex Pinning Properties}{\textquotedblright}. De Keukeleere K, Cayado P, Meledin A, Vall{\`e}s F, De Roo J, Rijckaert H, Pollefeyt G, Bruneel E, Palau A, Coll M, Ricart S, Van Tendeloo G, Puig T, Obradors X, Van Driessche I, Advanced Electronic Materials \textbf{2}, 1600161 (2016).   http://doi.org/10.1002/aelm.201600161

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