IR-to-THz down conversion in nonlinear Gase:Al crystals / D. M. Lubenko, D. M. Ezhov, V. F. Losev [et al.] // Bulletin of the Russian Academy of Sciences: Physics. 2020. Vol. 84, № 7. P. 780-782. URL: http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000792067