Wilfried GJHM van Sark*, Jessica de Wild, Jatin K Rath, Andries Meijerink and Ruud EI Schropp
* Corresponding author: Wilfried GJHM van Sark w.g.j.h.m.vansark@uu.nl
Nanoscale Research Letters 2013, 8:81 doi:10.1186/1556-276X-8-81
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