Influence of pollution and extraneous inclusions on the scattering of THz radiation by fabricA.A. Angeluts, V.N. Aksenov, A.V. Balakin, I.A. Ozheredov and A.P. ShkurinovEPJ Web Conf., 195 (2018) 09001DOI: https://doi.org/10.1051/epjconf/201819509001