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\bibitem{Verbeeck_etal2012} {\textquotedblleft}\textit{A holographic method to measure the source size broadening in STEM}{\textquotedblright}. Verbeeck J, B{\'e}ch{\'e} A, van den Broek W, Ultramicroscopy \textbf{120}, 35 (2012).   http://doi.org/10.1016/j.ultramic.2012.05.007

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