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\bibitem{Tong_etal2003} Tong, C. - Y. E., Meledin, D. V., Marrone, D. P., Paine, S. N., Gibson, H., \& Blundell, R. (2003). Near field vector beam measurements at 1 THz. \textit{IEEE Microw. Compon. Lett.}, \textit{13}(6), 235--237.

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