Study of PVC-based Skin Phantom with graphite particles in Terahertz Frequency RangeT. Zhang, M.K. Khodzitsky, P.S. Demchenko, A.V. Bykov, A.P. Popov and I.V. MeglinskiEPJ Web Conf., 195 (2018) 10019DOI: https://doi.org/10.1051/epjconf/201819510019