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\bibitem{Heidari_etal2016} {\textquotedblleft}\textit{Melamine{\textendash}Formaldehyde Microcapsules: Micro- and Nanostructural Characterization with Electron Microscopy}{\textquotedblright}. Heidari H, Rivero G, Idrissi H, Ramachandran D, Cakir S, Egoavil R, Kurttepeli M, Crabb{\'e} AC, Hauffman T, Terryn H, Du Prez F, Schryvers D, Microscopy and microanalysis \textbf{22}, 1222 (2016).   http://doi.org/10.1017/S1431927616012484

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