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\bibitem{Schattschneider_etal2013} {\textquotedblleft}\textit{Comment on {\textquotedblleft}Quantized orbital angular momentum transfer and magnetic dichroism in the interaction of electron vortices with matter{\textquotedblright}}{\textquotedblright}. Schattschneider P, L{\"o}ffler S, Verbeeck J, Physical review letters \textbf{110}, 189501 (2013).   http://doi.org/10.1103/PhysRevLett.110.189501

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