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\bibitem{Cooper_etal2011} {\textquotedblleft}\textit{Field mapping with nanometer-scale resolution for the next generation of electronic devices}{\textquotedblright}. Cooper D, de la Pe{\~n}a F, B{\'e}ch{\'e} A, Rouvi{\`e}re J-L, Servanton G, Pantel R, Morin P, Nano letters \textbf{11}, 4585 (2011).   http://doi.org/10.1021/NL201813W

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