Roganov, Yu.V., A. Stovas, and V.Yu. Roganov. “Anisotropic Media With Singular Slowness Surfaces”. Geofizicheskiy Zhurnal 46, no. 1 (February 25, 2024). Accessed November 23, 2024. https://journals.uran.ua/geofizicheskiy/article/view/298656.