Hachay, Olga, Veniamin Dryagin, and Andrey Khachay. “Recent Study and Modeling of Nonlinear Acoustic Processes in a Layered Nonlinear Medium With a Porous Fluid-Saturated Inclusion of a Hierarchical Type”. Modern Advances in Geography, Environment and Earth Sciences Vol. 5 (July 14, 2021): 1–10. Accessed July 21, 2026. https://stm.bookpi.org/MAGEES-V5/article/view/2402.