Abgaryan, G.K. 2014. “FREQUENCY TUNABLE THz-GENERATION IN PERIODICALLY POLED LITHIUM NIOBATE CRYSTAL”. Proceedings of the YSU A: Physical and Mathematical Sciences 48 (2 (234). Yerevan, Armenia:46-49. https://doi.org/10.46991/PSYU:A/2014.48.2.046.