Galumian, A. G., & Arakelian, H. M. (2002). MATHEMATICAL COMPARISON OF TWO WELL-KNOWN PATTERNS OF MATERIAL EQUATIONS FOR GYROTROPIC MEDIA. Proceedings of the YSU A: Physical and Mathematical Sciences, 36(3 (199), 35-40. https://doi.org/10.46991/PYSUA.2002.36.3.035