Determination of porosity of ceramic materials by terahertz spectroscopy / A. E. Rezvanova, A. I. Knyazkova, V. V. Nikolaev, A. N. Ponomarev // Pulsed lasers and laser applications AMPL-2021 : the 15th International conference, September 12-17, 2021, Tomsk, Russia : abstracts. Tomsk, 2021. P. 124. URL: http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:000890873