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DOI: 10.1109\/TAP.2005.854534. 10.1109\/TAP.2005.854534","DOI":"10.1109\/TAP.2005.854534"},{"key":"14","doi-asserted-by":"publisher","unstructured":"[14] L.-R. Harris, T. Hikage, and T. Nojima, \u201cUsing large-scale FDTD method to obtain precise numerical estimation of indoor wireless local area network office environment,\u201d IEICE Trans. Fundamentals, vol.E92-A, no.9, pp.2177-2183, Sept. 2009. 10.1587\/transfun.e92.a.2177","DOI":"10.1587\/transfun.E92.A.2177"},{"key":"15","doi-asserted-by":"publisher","unstructured":"[15] A.C.M. Austin, M.J. Neve, and G.B. Rowe, \u201cModeling propagation in multifloor buildings using the FDTD method,\u201d IEEE Trans. Antennas Propag., vol.59, no.11, pp.4239-4246, Nov. 2011. DOI: 10.1109\/TAP.2011.2164181. 10.1109\/tap.2011.2164181","DOI":"10.1109\/TAP.2011.2164181"},{"key":"16","doi-asserted-by":"publisher","unstructured":"[16] S.S. Zhekov, O. Franek, and G.F. 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