Manukyan, S.M., A.A. Butavyan, and H.M. Manukyan. “TRANSMISSION OF NARROW SOUND BEAMS IN NONLINEAR ENVIRONMENT”. Proceedings of the YSU A: Physical and Mathematical Sciences 50, no. 1 (239) (March 18, 2016): 45–51. Accessed November 22, 2024. https://pub.ysu.am/index.php/proceedings-phys-math/article/view/vol50_no1_2016_pp045-051.