Melkonyan, A. and Sarkisyan, S. (2011) “PROPAGATION OF A HARMONIC WAVE IN A PLATE WITH SYMMETRIC STRUCTURE”, Proceedings of the YSU A: Physical and Mathematical Sciences. Yerevan, Armenia, 45(2 (225), pp. 45–49. doi: 10.46991/PYSU:A/2011.45.2.045.