The dielectric tensor rotation angle and optical properties of a nonlinear crystal of bismuth triborate in the millimeter wave range / N. A. Nikolaev, A. A. Mamrashev, V. D. Antsygin [et al.] // Pulsed lasers and laser applications AMPL-2021 : the 15th International conference, September 12-17, 2021, Tomsk, Russia : abstracts. Tomsk, 2021. P. 106. URL: http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:000890747