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\bibitem{Gjorgievska_etal2015} {\textquotedblleft}\textit{The incorporation of nanoparticles into conventional glass-ionomer dental restorative cements}{\textquotedblright}. Gjorgievska E, Van Tendeloo G, Nicholson JW, Coleman NJ, Slipper IJ, Booth S, Microscopy and microanalysis \textbf{21}, 392 (2015).   http://doi.org/10.1017/S1431927615000057

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